A hybrid phased event, The Coliseum pitted players against four of the game's most difficult bosses with a choice of three difficulty levels. Each phase offered a unique Record Synergy not shared by the preceding phases. Should players have conquered all twelve dungeons, a final battle against Omega awaited them.
Battle 1 - Girl Power
(Synergy condition: Female units only)
Battle 2 - Bad Boy Brawl
(Synergy condition: Male units only)
Battle 3 - Size Matters Not
(Synergy condition: Units aged less than 18 in source stories only)
Battle 4 - Heart of the Beast
(Synergy condition: Unit is non-human or demihuman)
Battle of Champions
- Due to technical errors, some phases of the accompanying Relic Draw were extended through the closure of the event.