Collaboration Gauntlets · Stage 15
Healer & Co. Lv.15
癒術士と仲間たち Lv.15
Healer & Co. Lv.15 is a Battle Cats stage in Trials of Merc Storia!. It costs 130 energy and sends 10 enemy spawn lines — led by Healer (Enemy) as the boss — against a 950,000 HP enemy base, and clearing it rewards 11,609 XP. Its enemies carry the Floating trait, so cats that target it do the most work here.
Data updated: 2026-08-31
130Energy Cost
11,609XP Reward
950,000Enemy Base HP
5,000Stage Length
10Max Enemies
10.2Difficulty
Enemy spawns (10)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 Serum (Enemy) | 1400% | 5 | 18s | 26.7s~30s | 100% | — |
 Alois (Enemy) | 1400% | 5 | 6s | 26.7s~33.3s | 100% | — |
 Orthos (Enemy) | 1400% | 5 | 50s | 30s~40s | 100% | — |
 Fuu (Enemy) | 900% | 2 | 20s | 40s | 100% | — |
 Cornelia (Enemy) | 900% | 1 | 66.7s | — | 100% | — |
 Michelia (Enemy) | 900% | 1 | 40s | — | 100% | — |
 Hearscht (Enemy) | HP 200% / ATK 325% | 1 | 120s | — | 100% | — |
 Todomeki (Enemy) | 325% | 1 | 100s | — | 100% | — |
 Healer (Enemy) | HP 900% / ATK 1000% | 1 | 20s | — | 100% | Boss |
 Ms. Sign | 100% | ∞ | 900s | 900s | 100% | — |