Notes
I will explain the cards but if you wish for more in-depth information, go to https://www.carddass.com/dbh/sdbh_ugm/cardlist/ with a translate add on or utility, can copy the card text and paste it to google translate if you're an unsophisticated ningen. And Dimpsu, if you are reading this, pls WM2, I need the localized goodies so I don't have to cry on not letting my deck building autism flow, and you know that you can make it a masterpiece, H1 -> UGM5. Also for possible card choices, this won't be 100% complete, hundreds to thousands of combos, just the initial ones that came to my mind that I thought were noteworthy. Also i won't touch apps too much if at all for these deck techs because they're not in my wheel-house, best I can say is use what feels right, PWR LV Limiter on R2/3, maybe Ultra God App if you wounded Vegito (Xeno), there's a missile app for R4/5 that deals 20k damage that you could try to stall towards, won a finals match on stream.
Masked Black deck tl;dr
I want to use BM8-SEC3 because on a mechanical level I see it as one of the absolute shining jewels SDBH has ever made, one that rewards skill, appropriate deck building, and tactical acumen in assessing the opponent's plays and predicting it. It is strong, but also not as bloated as some cards can get. Now to help with using the card and landing meaty hits, we need a constrictor/control deck of sorts to make the opponent more predictable, you don't go full attack mode under a Hellfire God Meteor or when Gowasu has decided that you need to stop, which can leave with few attackers at the first area, and delicious results for Black to harvest.
Face Card
BM8-SEC3 SSR Masked Black
The main impetus for the deck, what he does is that as long as you have 50% or more HP, after being an attacker, he'll 'slash' at the enemy's board to the equivalent of his position, and reduce all enemy attackers' PWR/GRD/STA to 1, this is powerful, even in the world of UGM, where cards like BM8-064 Super Hearts which can undo GRD shredding, are rare. This also has bonus tech boons too, UGM3-SEC2 Goku will set your PWR to 1 if you PIERCE GRD/DMG reduction, if you cancel the enemy's grd with BM11-SEC3 Goku or set it to one with Masked Black, you don't trip it, and instead get to feast because he also comes with a bonus if the enemy has a Goku, regular goku only, not GT or Xeno, but both are really rare so it's fine, in which he prevents STA damage and deals 2x damage, which extends to his meaty kamehameha, which, while slow, gives him 5k PWR/GRD/PWR LV and can predict the enemy's movements without fear. Now this is all great but there's one problem, skill. Not so much in CI, but in predicting your opponent's move so that he can catch the enemy HAs or other delicious targets (such as UGM1-SEC Goku, if reduced GRD to 1, after the first attack you have free reign for massive damage), especially if they don't have a Goku as now you're at the possibility of being stunned, not common, but for standard play, something to take note when doing many matches. Now in this meta, there's a couple of problems to take account for, firstly, the PLBP, many cards like UGM2-065 Piccolo (SH), EL Android HA, and a few others that proc AFTER he hits, so even if he hits the HA, she might get her PWR theft proc or STA generation. The other problem, is that having 1 PWR isn't an exact death-knell to damage on its own, cards like UGM3-SEC2 Jiren or UGM2-SEC Gohan (SH) do massive damage when attacking thanks to huge DMG multiplication, and the latter's PWR generation in particular, also there's UGM3-SEC Gohan (SH) and UGM4-SEC2 Gotenks, both do a good deal of fixed damage, though thankfully, we can plan for all of this.
Cards of Consideration
BMPS-06 Zamasu
Defensive Stance and Hellfire God Meteor do wonderful things, primarily make sure we don't die if we fuck up SSR Masked Black BUT it also is a way to funnel the enemy team to the attack zone so that Black can do his work, very safe option, it's a staple and you can't go wrong with them.
UGM3-068 Vegito (Xeno)
While he may not screw with enemy STA, screwing with their HE generation that can make it where the opponent is more withdrawn as long as you can keep your HP up while also reducing their healing options, 4x DMG and 4k PWR LV alongside this is very welcome too, he's good card. Will warn, this is also a card that can beat you up too if you go too hard on healing, was made as an answer to the Ultra God App which gave 2k max HP per ally attacker alongside with BM8-054 Goku.
UGM3-SEC3 Shenron
Now to a big thing, healing, to make sure we can keep Masked Black active, we need healing against things that one can't normally mitigate, fixed damage, CAAs/TAAs, Shenron is not only big healing but extremely versatile, and funnily enough can act as a sort of punish if the enemy is focusing on disabling Masked Black since if they do, Shenron is much stronger, doubling all of his effects. So the three charges of getting 1.5k DMG for your attackers winning CIs, 5k healing with STA regen, and 40% dmg reduction that comes with stun prevention, are now 3k, 10k, and 80% respectively. The only problem here is timing, and three charges. His heal is after strategy's decided so he won't restore Masked Black for another use until next round, as long you don't fall below the threshold again, and you can't use it for every round but if you can end games quick, that's not a problem.
BM10-SEC2 SSRFP Masked Black
Somewhat a meme but when it comes to healing, it is something somewhat limited on Cards, and if you're REALLY good with CI, perfects out the ass, this is a card that you could use. For what he does is that when attacked, he gains HP/PWR/GRD/PWR LV depending on the CI result, if you lose, 1k HP with 2k to all the other stats, if you win, 3k HP and 6k to the aforementioned stats, really good if you can keep winning for multiple times. He also comes with redirection as long as you win the PLBP, I think he and BM8-SEC3 fit well, but you really do need the right core for him to fit, such that it's more like you're focusing on this card rather than the card this deck was meant to focus. Usual core for him would be around 2-3 cards, and we are needing a HA, and with BM8-SEC3, you have 2 slots left to try to force the opponent to fall onto SSR Black's Scythe. This card-hogging is also why BM8-065 Cell is not going to be considered here, while he doesn't need to win CIs as hard, you still want to and he needs re-targeting, at least with some of the cards BM10-SEC2 wants, they may have synergy with other cards.
UGM1-SEC4 Goku
So the resurrection effect is alright, but not what we want, and it's unlikely to be active if you are under Aeos' grasp, the main allure is the healing, so 1k HP per enemy attacker, is alright, early in the days I'd say this sounds insane but without sufficient defense options, it's good, but not amazing, now the timing though, is great. Being end of round means that he can heal through thresholds in time, so that if you dip below 50%, he can bring you back to above 50%. He also comes with STA damage too when he heals, for some reason, only reduces by 1 bar but it is something that is more than just healing. Considering we're trying to proc SSR Black though, don't get too attached to the Kamehameha dealing the 5k extra damage, may come up if a match has been going real bad but not if you're winning.
HGD9-056 Gohanks (Future)
Also known as more consistent, and budget, UGM1-SEC4, he does come with extra goodies, first, you're using Gohanks (Future) and Gohanks has one of the coolest super attacks in the whole game. Secondly, his lock on can have some really nice niche use cases, he has a 4 HE super attack, which is low cost, and can set someone's PWR/GRD to 1 for this round, that's good to help keep a card or two in check to buy some time to wreck house. Also he's open to heal all the time, enemy allowing, unlike Goku which requires you to dip 50% HP, but in this meta, asking for 7k PWR LV? Yeah the enemy probably won't play around it too much since it'd mean they are going to be really slow, and if they do, Masked Black gets to take away living privileges of ningens.
BM8-054P Goku
Insert the Office 'GOD NO' clip for this one, welcome to what might have been THE Goku for the longest time, if you have 5 or more attackers, he gives everyone 3k GRD and 30% dmg reduction, really good, if he's a supporter, he restores 1 bar of STA for the team on top of it, really good, R3 onward he transforms into UIO, gaining 10k PWR/GRD/HP, really welcome. Few problems though, if you're against a BM7-SEC2 Masked Black, his pierce can do a number on you, UGM3-068 Vegito (Xeno's not been wounded, he can hurt the health gain, and finally, how he interacts with thresholds. This card doesn't 'heal', he increases your max HP, firstly he does it on transformation, being a bit too slow for Black's liking, and secondly, if you're really low, like 5k with max health of 25k, and then he transforms, you won't break the threshold for Black even if you took no damage because you're at 15k HP with a max health of 35k, whereas a straight heal, you'd clear the threshold with room to spare.
POSSIBLY 
AND 
UGM4-064 Gohan (SH) (POSSIBLY) UGM2-065 Piccolo (SH) AND UGM4-062 Goku (SH)
I hope you like staple cards, they're good for a reason, he is a good access point for a SH unit core with UGM2-065 Piccolo (SH) and UGM4-062 Goku (SH), but there is also synergy and not just good-stuff for his inclusion here. Gohan reduces enemy STA in a way that sticks and is punishment for enemy defensive options, since if you do it during strategy's decided, during the PLBP, EL Android HA will just give them STA again, the speed and HE are nice as well. Do have to fear BM12-SEC Goku since he restores STA at the end of the round but he isn't omni-present, and let alone UM9-SEC Goku (GT) or UM8-068 Great Saiyaman 3. For UGM2 Piccolo (SH), he gives STA generation at the PLBP, and if you use units, gives you HE alongside increasing the enemy's CI speed. UGM4-062 has it where you gain STA on using a unit and a unit that reduces the STA of everyone but because of order, you'll get the STA from him after it's been used so you'll win the PLBP and put the enemy on a position that Black can capitalize.
UGM4-057 Bardock in Black
He is a versatile card that can be used once, when he's a supporter he sets the enemy's PWR to 1k is more than 1, but it means Aeos can't seal miracle perfects or resurrection and ABS-03 Vegito isn't going to hinder your damage either, he also doubles your team's PWR, nice, and disables DMG increases at the PLBP, late, which means you're safe from Hellfire God Meteors for sure. More a tech option than something to main deck in my eyes.
UGM5-017 Goku
UGM5 Goku is more here as a purely defensive option, when he's an attacker, he sets the enemy PWR to 1k (this round only) and disables TAAs/CAAs (this round only), which is really nice, and then at the end of the he sets his PWR/GRD to 1, which can be used to proc various synergies, and as its a Goku, he's also good as a unit member if needed.
UGM5-063 Aeos
So she does two things, first, her god meteor, all enemy attackers for the round have their PWR set to 1 permanently, while this can proc certain synergies, be a problem against Aeos core since they can unit next round, it is still a strong line of text that can guarantee they may not want to swing too much, PWR restoration cards like UM12-SEC3 Teen Gohan don't see too much play, even PWR generation is sometimes limited with mostly Golden Frieza (Xeno) having that role though UGM2-064 Gohan (SH) exists, this can also make the enemy more predictable, after all, UGM3-068 Vegito (Xeno) is a lot less threatening with 1 PWR rather than 10k so Black can be ready to hack more ningens to redemption through death. Best part is that Aeos is more than just a god meteor, she also disables certain Action Abilities on the enemy team based on round number (this round only), first round disables TAAs, which disables UGM1-SEC Aeos' keysword, round 2 disables TAAs which hits Dragon Fists, Double Attacks, transformations and many other effects, round 3 disables climaxes and summons, the 4th round disables super attacks which can help mitigate damage, and the final round tells the enemy to go fuck themselves (disables everything).
AND 
AND 
POSSIBLY 
Aeos Core (card theme https://www.youtube.com/watch?v=RKJur8wpfYM)
So while you could probably put them in every deck, what makes them special here. Aios Keysword can disrupt STA generation/enemy tech options so that you can put them in the corner, Vegito, which isn't mandatory here, helps slow the enemy's aggression down as well as get people Black may have missed (such as the enemy diversifying their Attacker placement), Bardock in Black procs Vegito/Aeos and makes it where you get some PWR generation, STA generation, and protect Black from being stunned, and Namekian in Black can give you some HE/PWR LV so that you can go first and have easy access to the unit, which helps you recover from various effects in the game, whether its EL Android HA, speed demons, and whatever else. Tier 0 meta mommy is good here.
UM9-048 Brainwashed Kai of Time
So the god meteor is a bit mediocre in present times I think but with some build around such as Gowasu and friends, but can still make the enemy not want supporters and as such, more for Black to target, the supporter effect though is really nice, disables all DMG increases as a tech against hellfire god meteor and UGM3-SEC2 Jiren, and disables DMG reduction for everyone too, which is nice against Defensive Stance (I think) among other effects which increase DMG reduction, alongside the added benefit of not having you explode against CellMax because your reduced DMG reduction isn't being taken into account this round.
OR 
PSES13-04 Shroom OR PCS15-01 Goku
So the thing is both these cards do the same thing, Clever Trap with Arctic God Meteor, former is -4k to enemy PWR for each enemy attacker (this round only) and the latter is a god meteor that does 2k dmg to the enemy per supporter they have, this combination is a catch 22 for the enemy, if they have many attackers, they have no PWR and Black can feast, if they have few attackers, that's a lot of fixed damage and whatever Black does feast on, will really feel the sting of his scythe. With this you can have some neat mind-games on the opponent, if either of this matters, back in mid BM, these card had earnest niches, with Goku having extra points because he hits harder and is a Goku, so good unit member, but nowadays, it's a bit rough to tell if these cards would do much, could still be an option to very much test with though they, alongside Black himself, would definitely test your prediction skills because you could god meteor and not having them as a supporter just to fuck with them if you think you can endure.
BMPS-17 Gogeta
So this Gogeta has Hellfire God Meteor, which is really good, Intimidating Aura which HE generation by abilities for the enemy on R2, really nice depending on the enemy deck, and then comes with a PWR LV Limiter Unit that needs Goku (Xeno) and Vegeta (Xeno), and they're not form-locked so it's hard from a tall ask. This promo just has three really nice things, God Meteor is defensive and makes the enemy easier to predict, the ability makes it where they are slowed down R2 a bit, especially if they're using Gohan (SH) most likely, and then the PWR LV Limiter functions the same as the god meteor but making sure win the PLBP and getting you the win if able to secure it.
PMDS-04 Beerus
Another Hellfire God Meteor fellow, his thing is that he has Opportunity to Instruct, where if you have an ally with less than 100 GRD, you can, one time only, halve the enemy PWR and increase their CI speed, it's also a Beerus which does sometimes show up for units. This promo, back in the day of 2019, did see some play because of his application, and here could work fine because it's in the PLBP, so that's when Aeos does her magic and after UGM2-064 Gohan(SH) could've been a supporter, reducing your GRD by 6k.
UGM3-SEC2 Goku/Jiren
So this card is being here as defensive against one thing, Fixed Damage, Jiren completely disables fixed damage on enemy attackers that have less PWR than him, he also comes with 5k PWR LV, doubles his PWR and DMG dealt when attacking. The PWR LV here does generate HE, he comes with high PWR so he can happily cull the fixed damage off of UGM4-SEC2 Gotenks, though depending on the team BM12-SEC Goku is a bit harder to overpower normally, of course if Black does land on BM12-SEC Goku, well done, Jiren can tell him to eat a bag of dicks because 1 PWR is a lot less than 8500. And the dmg dealt means he can just in general hit really hard. Now for the Goku side of things, he is HE generation dependent on how many enemy attackers can use their super attacks and can act as pierce punishment, for when an attacker and you're attacked by one who pierces GRD (not DMG reduction), you set that co-op group's PWR to 1 for this round only, and unlike Baby Trunks, BM7-SEC2 Masked Black doesn't have an off switch, though most times you're using it for Jiren as it seems that Masked Black has fallen a good deal, but the versatility is really strong in this card.
UM8-045 Goddess Putine
Fuck fixed PWR LV increases? Fuck fixed PWR LV increases, as long as she has a bar of STA, she'll disable fixed PWR LV increases and reduce enemy STA by a bar at the start of the round, which can also disrupt the enemy and make it where they may be more conservative with their STA, at which you can capitalize on.
OR 
OR 
OR 
UM7-045 Omega Shenron OR BM10-070 Majin Omega Shenron OR HGD10-046 Gowasu OR ABS-10 Frieza
So while it may seem weird, Masked Black really appreciates STA disruption since it means the enemy can be more predictable or feel trapped, so all these cards do one thing, set all enemy STA to 1, they do more, some have different timings, but that is why they're here, for they do that, reliably, until they get hit with that Aeos keysword and you lose the CI for it, a couple of these are time-based meaning once their time of activation's passed, you get nothing, dick, nada. Let's start with the oldest, HGD10-046 Gowasu, when he's a supporter, at the end of the round, reduce enemy STA to 1 and reduce their HE by 3, if they don't have BM12-SEC Goku (or other such card), or heavy early STA generation, then this can really put the enemy down the back foot. Gowasu comes with no CAA, and his unit, while it could have applications, requires you to use Bills and Whis. Now to UM7-045 Omega Shenron, he does the same effect as Gowasu but exactly at the start of round 3, he has a CAA this time with an awoken burst but his Super Attack is a bit on the high-end at 7 HE, main benefit compared to Gowasu is if you wanted a second effect, and if you wanted your stun card to possibly show damage, because Gowasu does no damage. Now to BM10-070 Majin Omega Shenron, similar to Gowasu he activates when a supporter at the end of the round, but he increases enemy CI speed permanently instead of immediate HE destruction, that comes from his CAA, which is a dark dragon mode that reduces enemy HE by 3 and steals enemy PWR by 10k, at the cost of reducing ally STA to get the most damage, funnily enough this could proc synergies but the most here is if Black sees a [REDACTED NINGEN] and prevents STA dmg, he also gets even more damage than UM7-045 Omega Shenron but because his HE destruction's slower, you can get railed by units like PWR LV Limiters. And finally, we end with ABS-10 Frieza, literally has UM7 Omega's ability, but a different CAA, Frieza's being a scattered energy wave that makes the enemy take double damage, also note that this CAA can natively stun if they're at 1 STA, unlikely in the world of EL Android HA and UGM2-065 Piccolo (SH) but still.
OR 
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OR 
OR 
BM6-068 Broly OR UM8-047 Fin OR ABS-16 Omega Shenron OR UGM2-SEC3 Cell OR BM11-SEC3 Goku OR UM3-038 Goku OR PUMS12-SEC Goku
So all of these cards do mostly one thing, HALT MOMENTUM ON R1, slow down the enemy right as the game begins so that you can begin to slice them apart, don't kick them for there's a chance they're a foot fag and they'd enjoy it. The difference between these and UGM5 Aeos is that these cards are more poignant at the beginning meanwhile Aeos is a bit of a slow burner. BM6-068 Broly is brutal, set enemy STA to 1 and make it where they regenerate next to no STA as a supporter, he also transforms into SS4LB R2 onward, gaining 10k PWR, STA dmg prevention, and always having his super attack regardless of HE, nice. UM8-047 Fin is a bit less damage but a more secure R1 'fuck you', if the impact will be less felt R2 onward, he makes it where the enemy's PWR LV is set to 10% of what it'd be and disables HE generation, fuck you Aeos, he also has an awoken burst that halves enemy DMG dealt but not too reliable, 7 HE super attack. ABS-16 Omega Shenron, and not the last Omega Shenron in this carnival role call of options, at the start of the battle he disables enemy TAAs/CAAs until you take 2k dmg from a given round, in theory if you're really defensive this can last to round 2 but 90% of the time it'll end at R1, which is fine, for this is enough of a stun to have to make them respect a R2 Gowasu or punt God Meteors out of orbit, he also has an ultimate energy that stuns the enemy and sets their GRD to 1, which could make them prime bait for a CAA to get a nice random cheese win. UGM2-SEC3 Cell, reduces enemy STA by 1 bar and disables PWR LV multiplication, would've been real nice in the era before we were blessed by Tier 0 meta mommy Aeos' bountiful generosity, but nowadays, not so much, he does come with benefits though, the Climax. He can get to Super Perfect with 10k PWR LV at R1, at which point he steals 5k PWR/GRD from all enemy attackers, not bad, also after he's attacked, he can steal HE from the enemy based on his form, at Super Perfect, it's 5 HE. One thing to remember is that if HE generation's disabled like from UGM3-068 Vegito (Xeno), while you will reduce enemy HE, you won't increase your own through the theft. And now to the trilogy of Gokus, I'm sorry. First we have BM11-SEC3, where Goku goes SS3, he halves enemy PWR LV at round 1 and if he's at SS3, after he attacks the enemy, he'll reduce his damage by 30% but disable the enemy's GRD, and when transforming into SS3 gives him 4x PWR and DMG, he is a very strong card that makes a bit of Masked Black pointless while also synergizing with him, as depending on who Goku hit, Black can focus on targeting other enemies, the R1 stun, while not absolutely amazing, with everything else is a cherry on top of this broken sundae from Hell. Then, UM3-038 Goku, who completely disables HE generation of any kind for the enemy R1, none from abilities or PWR LV, he also comes with a fusion to make SSB Vegito, which is 1.5x DMG and GRD/DMG reduction pierce, there is a good SSB Vegeta that has Hellfire God Meteor which can fit on this team, HGD8-CP2, but note that this can backfire against UGM3-SEC2 Goku. Finally there's PUMS12-SEC Goku, who's a bit weird, so he disables enemy HE generation via abilities and makes it where they can only get 2 HE from PWR LVs r1, he also prevents stun on himself while giving himself 3k PWR, GRD, and PWR LV, the CAA gives him and all partners 3k PWR which is something, and the unit is a Vegito (Xeno) like stun-effect, but one round only and requires Goku and Piccolo as unit members, which isn't bad, but requires deck space.
OR 
UM4-SEC2 Omega Shenron (Xeno) OR BM11-017 Goku
And the final two I'll mention, Omega Shenron (Xeno), what he does is that when transformed, he reduces enemy STA and disables GRD/DMG reduction, and the transformation itself, is 10k PWR with a special attack regardless of HE, and the inability to participate in Co-Op attacks, a boon against BM7-SEC Goku, overall this is another STA disruption but lands during the PLBP, which can, if he lands last, impact against UGM2-065 Piccolo (SH) and the EL Android HA, the pierce can proc UGM3-SEC2 Goku but he might not be absolutely common so if you're comfortable, he can certainly be a threat, helps he transforms before the PBLP so you aren't waiting for R3 to begin his reign of terror. BM11-017 is a bit less damage but with the addage that he can proc on the first round if you have 11k+ PWR LV, where he, like Shenron, reduces enemy STA at the PLBP, but also increases their CI, his CAA promises big special attack damage but I've yet to really see it amount to much, it is a bit slow, though the STA disruption is bigger here than on Shenron, where he's a bar or two, Goku sets them to one I believe.
The Deck proper
OR 
OR 
HGD10-SEC2 Demon God Demigra OR UGM4-SEC Vegito OR UGM1-SEC2 Goku/Vegeta
So this slot is very much up to preference, I just figured some STA generation would've been nice but so could UGM4-SEC Vegito be with the everything he does. Demigra is STA generation with a scary god meteor that could equal to even more fixed damage, this alongside the HA could spell over 17k+ fixed damage if they try to be really aggressive, or position them to be more predictable against the mercy that is Black's scythe, though one bar of STA isn't much, nor is one HE when that can easily be taken away, but with let's say BM8-054 Goku and BM12-SEC, it can be enough to sit comfortable. UGM4-SEC Vegito is UGM4-SEC Vegito, slows the enemy down, halves their damage, hits strong himself and can be quite fast if enabled, also can be massive HE destruction if you win the PLBP. Now UGM1-SEC2 Goku is a very nice defensive utility that can block strong EL co-op groups (masked black, most HAs, BM11-SEC3 Goku, Aeos, etc.) to only dealing one damage alongside some STA generation, being able to null the EL group means that Black can focus on other mortals, instead of just trying to get the most attackers, the Vegeta half doesn't exist. Out of the three I'd probably walk out with UGM1-SEC2 Goku/Vegeta but the other two definitely have their own benefits to take into account.
OR OR
HGD10-46 Gohanks (Future) OR BM8-054P Goku or UGM3-SEC3 Shenron
My preference here is Gohanks but that might be the hipster in me talking, also look, Gohanks' Super Attack is really cool, hence the alternatives. Gohanks gives you healing and one HE if the enemy has 7k+ PWR LV, nowadays that is hard to play around so as long as Goku/Jiren's doing their job, you can comfortably keep Black staying active, he also comes with an easy to enable lock-on that sets someone's PWR/GRD to 1 for the round, and its after strategy's decided so it'll stick against Gohan (SH) but not against PLBP boosts (such as with EL Android HA). BM8-054P Goku helps with STA generation and general tankiness with the 3k GRD and 30% DMG reduction, though his healing isn't exactly healing and may miss thresholds if you're too hurt, and while Gohanks may feel Vegito (Xeno) a bit more, Goku should be less hurt by him since you should've dealt some damage pre R3. Finally there's Shenron, he is ultimate versatility and the only one of three with actual aggression with his three wishes, just be careful when you wish for damage and remember to win the CIs, as for the wishes, don't be too wasteful with them but also don't be too hesitant, if you expect a lazy R2 from the enemy after a Hellfire God Meteor, don't mind going for some damage with a few attackers, heal when needed, and remember the DMG reduction also is stun prevention, and late enough to not trip BM7-SEC Masked Black.
UM8-045 Goddess Putine
So with meta mommy Aeos, the PWR LV boosters seem to be a decent rarity so the idea is that this can handle the other half of them, Namekian in Black, Vegito (Xeno), etc. while also being some extra STA damage, the STA damage also helps tone down those speed demons since while 18x is strong, 18x * 100 is not.
BM12-SEC Goku
The STA recovery of choice to back up our EL Android HA, comes with fixed damage, huge PWR, just in general a good card and a nice thing to help the deck. Could've been replaced with UM9-SEC Goku (GT) but the damage's more preferred over his niche PWR LV boosting.
UGM3-SEC2 Goku/Jiren
Hey, let's not immediately blow up by either BM7-SEC Masked Black or UGM4-SEC2 Gotenks shall we? Jiren is pretty much the best fixed damage tech, who also works on the aforementioned BM12-SEC Goku, also being a freight train, he will appreciate the low GRD, and gives 5k PWR LV to help win the PLBP and generate HE because his counts towards that.
EL GoD HA
So this one, is decently common but not omni-levels so, what this card does is that if you have more attackers than the enemy, reduce their STA in the PLBP, good against the Android HAs, if the enemy has 3 or more attackers, she makes them lose 1.5k HP per attacker they have, both of these for the enemy to be put into a bind since if they go fast, you just dealt 10.5k HP to them without doing anything, and if they don't, then you can shred their STA quite well. One thing to note when trying to gauge meta-relevance on HAs is that it could be a bit of sunk cost since raising HAs to competitive levels, is a long process (either you dragon ball to swap races and go from level 1-99 for 4-5 classes, or you pull out a new card, in which you only need to do that once for the race of HA but also need to raise camaraderie alongside it, in a world where 3x Camaraderie capsules don't exist).
BM8-SEC3 SSR Masked Black
Read the 'Face Card' spiel.
The Gowasu Meme
HGD10-046 Gowasu
So he is a powerful stun tool that also comes with a unit, one that we'll try to leverage with some useful Beerus/Whis cards too, now the unit's not too great, being that it just resets the enemy PWR to initial values for 3 HE, but if can certainly have applications and it's not like there isn't a plethora of Whis/Beerus card to use that would work well with Masked Black, even if they're not amazing cards on their own.
OR 
OR 
SH1-35 Whis OR UM5-058 Whis OR HGD10-039 Whis
For this, I'd probably use SH1-35 Whis, since he is a stronger counter to BM7-SEC Goku and in general a more potent stun than HGD9-041 Whis which has Diversion, if you are deathly afraid of UGM3-068 Vegito (Xeno) and UGM3-SEC2 Jiren, you could use HGD10-039 Whis since he has a unit with Beerus and Gowasu to disable DMG increases for the enemy, but has nothing else, and if you're using a different Beerus, you could use UM5-058 as the defensive god meteor card but for me, I do have a Beerus using God Meteor. One thing to note about using SH1-35, remember where your Gowasu is because they can conflict and waste the other.
OR 
OR 
OR 
OR 
PMDS-04 Beerus OR BM1-SEC2 Beerus OR PCS4-10 Beerus OR PUMS3-10 Beerus OR PSES2-04 Beerus
Now Beerus is a bit more of a competitive slot, PMDS-04 can reduce enemy damage and increase their CI speed if you've been hit hard by disruption alongside a Hellfire God Meteor, PCS4-10 Beerus gives allies with less than 100 PWR 10k PWR, so rather than nerf the enemy he buffs yours, and while 10k isn't 100k, it's still some damage, though PCS4 doesn't come with a meaningful CAA, and while defensive stance could be nice, I prefer the efficacy of Hellfire God Meteor as well as the mindgames it can induce to bait for Masked Black, so my target's PMDS-04 Beerus here, though I'd be remissed to mention BM1-SEC2. That card can seem great, as is his ability to hit hard and be bulky, problem is that BM11-SEC3 disables his GRD, his dmg isn't Jiren levels of scary, and for a god meteor, it usually doesn't impact the opponent's flow that much, but can certainly be an option though if you fear hellfire god meteors yourself and want to have meaningful damage with this build.
OR 
OR 
UGM4-064 Gohan (SH) OR UGM3-SEC Gohan (SH) OR UGM2-064 Gohan (SH)
So the depression when using jank, you need a good foundation to support it. UGM4-064 sounds nice, an extra STA DMG option that also comes with huge PWR, problem, we already have enough ways to bludgeon the enemy's STA until it's nothing, you have Realm of the Strong, Gowasu, AND Masked Black all doing it, while this could be welcome, you should be fine to not need it, but it is an option since the CAA is very good as a PWR booster and he's fast with HE generation to boot. UGM3-SEC comes with synergy, at the start of the round he picks a battle type the enemy has (BS/EL/HR) at random and halves their PWR/GRD while increasing their CI, which can help with alleviating Black to focus on problem targets since a portion of them's already been hit hard, he also gives you permanent fixed damage, 500 to each ally attacker, if you have 2 or more HE by destroying one of yours. UGM3-SEC's CAA is also nice and can stun if they're at low STA. Finally there's UGM2-064 Gohan (SH), not a cool as UGM3-SEC but very practical, his transformation is 4x PWR and PWR LV, and he can either disrupt the entire enemy team with -6k PWR/GRD and -3 HE as a supporter or boost your entire team by the inverse as an attacker, and it's permanent for some reason. My pick here is UGM3-SEC since synergy activates the almonds, and the fixed damage can help do something against Hellfire God Meteor or other massive forms of DMG reduction.
UGM2-065 Piccolo (SH)
Consistent STA generation good, who knew, his CAA is 7.5k fixed damage and since of Gowasu you'll actually be using the effect that procs on unit use, 2 HE and increasing enemy CI speed, a nice cherry on top even if HE generation's been disabled.
EL Android HA
Le staple HA is le staple HA, strong STA generation, strong PWR interference, punishes aggressive plays which feeds the Masked Black alongside strong CAAs.
BM8-SEC3 SSR Masked Black
Read the 'Face Card' spiel.
Masked Black with Android HA
OR
BM11-017 Goku OR BM10-SEC2 Masked Black
The STA damage machine, also increases enemy CI speed which is really nice, if you were to register this, I think you want this last just because then it might proc latest so that it sticks against the usual suspects, problem is that I don't know exactly how order occurs in the PLBP effects, this ain't MtG, we don't have a rules book. As for BM10-SEC2, 75% meme choice because of how well he works with BM3 Vegeta, if you're good with CIs, he can heal a lot which is nice against the world of Gotenks but be careful if BM11-SEC3 Goku's around to disable his GRD.
OR
BM3-059 Vegeta OR UGM5-063 Aeos
Welcome to the link card that actually saw play past fucking DBH, and the way we're cheating Goku's effect off, what he does is link an ally and give them 10k(X) PWR/PWR LV, with (X) being the bars of STA he has, up to three, normally he starts with 1.5 being a BS and when a supporter on round one, he won't get to 2 STA, though with EL Android HA, you can be comfortable he'll have 3 next round, meaning 30k PWR/PWR LV, this round only and doesn't help with HE generation, just cheats out BM11-017 Goku's effect. Aeos is put on here as an alternative if you feel safe with just Jiren as some fixed PWR LV, being a powerful god meteor and stun tool throughout the game, but a bit slow which could mean she's not reliable for BM11 Goku.
UM8-045 Goddess Putine
So with meta mommy Aeos, the PWR LV boosters seem to be a decent rarity so the idea is that this can handle the other half of them, Namekian in Black, Vegito (Xeno), etc. while also being some extra STA damage, the STA damage also helps tone down those speed demons since while 18x is strong, 18x * 100 is not.
BM12-SEC Goku
The STA recovery of choice to back up our EL Android HA, comes with fixed damage, huge PWR, just in general a good card and a nice thing to help the deck. Could've been replaced with UM9-SEC Goku (GT) but the damage's more preferred over his niche PWR LV boosting.
UGM3-SEC2 Goku/Jiren
Hey, let's not immediately blow up by either BM7-SEC Masked Black or UGM4-SEC2 Gotenks shall we? Jiren is pretty much the best fixed damage tech, who also works on the aforementioned BM12-SEC Goku, also being a freight train, he will appreciate the low GRD, and gives 5k PWR LV to help win the PLBP and generate HE because his counts towards that.
EL Android HA
Le staple HA is le staple HA, strong STA generation, strong PWR interference, punishes aggressive plays which feeds the Masked Black alongside strong CAAs.
BM8-SEC3 SSR Masked Black
Read the 'Face Card' spiel.