Collaboration Stages · Stage 1
Heaven in Decline
滅びゆく天聖界
Heaven in Decline is a Battle Cats stage in Spirit War. It costs 30 energy and sends 5 enemy spawn lines — led by Beastly Nero (Enemy) as the boss — against a 2,400 HP enemy base, and clearing it rewards 4,230 XP.
Data updated: 2026-08-31
30Energy Cost
4,230XP Reward
2,400Enemy Base HP
3,200Stage Length
6Max Enemies
1.1Difficulty
Enemy spawns (5)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 Doge | 100% | 3 | 0s | 3.3s~10s | 100% | — |
 Snache | 100% | 2 | 30s | 6.7s~10s | 100% | — |
| Doge | 100% | ∞ | 0s | 10s~20s | 90% | — |
| Snache | 100% | 5 | 0s | 3.3s~6.7s | 90% | — |
 Beastly Nero (Enemy) | 1% | 1 | 0s | — | 90% | Boss |