Collaboration Stages · Stage 2
Cornelia: Heaven's Grace
天涯の訪問者！コーネリア
Cornelia: Heaven's Grace is a Battle Cats stage in Merc Storia: Attack. It costs 120 energy and sends 14 enemy spawn lines — led by Cornelia (Enemy) as the boss — against a 50,000 HP enemy base, and clearing it rewards 62,040 XP. Its enemies carry the Floating trait, so cats that target it do the most work here.
Data updated: 2026-08-31
120Energy Cost
62,040XP Reward
50,000Enemy Base HP
5,000Stage Length
12Max Enemies
3.1Difficulty
Enemy spawns (14)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 Nono (Enemy) | 100% | 1 | 8s | — | 100% | — |
 Celesse (Enemy) | 100% | 1 | 10s | — | 100% | — |
 Norn (Enemy) | 100% | 1 | 2s | — | 100% | — |
 Serum (Enemy) | 100% | 1 | 40s | — | 100% | — |
| Celesse (Enemy) | 100% | ∞ | 22s | 10s~20s | 100% | — |
| Nono (Enemy) | 100% | ∞ | 24s | 13.3s~30s | 100% | — |
| Serum (Enemy) | 100% | 3 | 80s | 20s~30s | 100% | — |
| Norn (Enemy) | 100% | 4 | 60s | 16.7s~33.3s | 100% | — |
| Serum (Enemy) | 100% | 4 | 0.1s | 62s~66s | 99% | — |
| Celesse (Enemy) | 100% | ∞ | 0.1s | 60s~62s | 99% | — |
| Nono (Enemy) | 100% | ∞ | 0.1s | 58s~60s | 99% | — |
| Norn (Enemy) | 100% | 5 | 0.1s | 64s~68s | 99% | — |
 Cornelia (Enemy) | 100% | 1 | 0.1s | — | 99% | Boss |
 Ms. Sign | 400% | ∞ | 900s | 900s | 100% | — |