Raid TL;DR

• Continuous AoE chip damage along with constant hits from choir enemies.
  • KO'd choir enemies will still be targetable with EX skills.
    • 20 choir KOs will inflict groggy. However, all groggy does is stun all enemies. Cannot happen in last minute.
• Main gimmick here is debuff management. Maintain 4~5 For EXT and below, 5~6 for INS, 6~7 for TOR and above.
  • If number GREEN, good. If YELLOW, not great, but okay. If RED, reconsider choices.
  • Target debuffs TO GREGORIUS specifically. Debuffs flow from Gregorius to the choir, but not the other way around.
• Supplementary gimmick is waves. There are 4 waves that cycle:
  • Yellow wave (behind you) hurts your students and makes them do less damage.
  • Blue wave (pipes) debuffs target for more damage taken.
  • Red wave (behind Gregorius) either removes or adds a debuff, whatever gets Gregorius out of the green amount.
  • White wave (pipes) removes a debuff from target.
• Pipes at center can be spun by depleting HP.
  • UNLESS you're doing unique debuff shenanigans, just flip it at start, ~2:45, ~1:20.
• THE LAST MINUTE IS THE MOST CRUCIAL MINUTE.
  • Greatly increased cost recovery and the most amount (10 on each side) of targets on the field.
  • Exception is D.Hina, since her straight line EX doesn't really benefit from the layout.