Collaboration Stages · Stage 1Heaven in Decline滅びゆく天聖界1★ 100%2★ 200%3★ 300%4★ 300%Data updated: 2026-07-2430Energy Cost4,230XP Reward2,400Enemy Base HP3,200Stage Length6Max Enemies1.1Difficulty Build a lineup for this stage Test your team vs this stageStage rewards5% — Prince Yamato · first clear · Treasure RadarEnemy spawns (5)EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotesDoge100%30s3.3s~10s100%—Snache100%230s6.7s~10s100%—Doge100%∞0s10s~20s90%—Snache100%50s3.3s~6.7s90%—Beastly Nero (Enemy)1%10s—90%BossAll Spirit War stages