Collaboration Stages · Stage 3
One with the Shadows
影との融合
One with the Shadows is a Battle Cats stage in The Hidden Grail War. It costs 70 energy and sends 11 enemy spawn lines — led by Rin Tohsaka (Enemy) as the boss — against a 30,000 HP enemy base, and clearing it rewards 9,870 XP. Its enemies carry the Red trait, so cats that target it do the most work here.
Data updated: 2026-09-15
70Energy Cost
9,870XP Reward
30,000Enemy Base HP
4,000Stage Length
15Max Enemies
3.2Difficulty
Enemy spawns (11)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 Croco | 200% | ∞ | 6.7s | 26.7s~33.3s | 100% | — |
| Croco | 200% | 5 | 13.3s | 10s~16.7s | 100% | — |
 Those Guys | 400% | 2 | 13.3s | 13.3s~16.7s | 100% | — |
 Sir Seal | 200% | 1 | 26.7s | — | 100% | — |
 Gory | 400% | 3 | -3.3s | 36.7s~40s | 99% | — |
| Those Guys | 400% | ∞ | -10s | 13.3s~16.7s | 99% | — |
| Croco | 200% | ∞ | -13.3s | 6.7s~10s | 99% | — |
| Sir Seal | 200% | 4 | -16.7s | 26.7s~33.3s | 99% | — |
| Gory | 400% | 2 | -20s | 36.7s~40s | 99% | — |
 Rin Tohsaka (Enemy) | 100% | 1 | 0s | — | 99% | Boss |
 Ms. Sign | 100% | ∞ | 900s | 900s | 100% | — |