Collaboration Stages · Stage 1
Schoolyard Clash
校庭の激闘
Schoolyard Clash is a Battle Cats stage in The Holy Grail War. It costs 30 energy and sends 2 enemy spawn lines — led by Rin Tohsaka (Enemy) as the boss — against a 1,500 HP enemy base, and clearing it rewards 4,230 XP.
Data updated: 2026-08-31
30Energy Cost
4,230XP Reward
1,500Enemy Base HP
4,500Stage Length
8Max Enemies
1.1Difficulty
Enemy spawns (2)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 Rin Tohsaka (Enemy) | 2% | 1 | 10s | — | 100% | Boss |
 Ms. Sign | 100% | ∞ | 900s | 900s | 100% | — |