Overview
Big Slime is a mid-chapter miniboss in The Caves and a classic splitting boss. Whenever you deal enough damage to Big Slime, it divides into smaller slimes, and those smaller slimes can divide further. A fight that starts against a single large target can flood the board with smaller enemies if you are not careful about how you prioritise. Awareness of the split mechanic is everything here.
Key Mechanics
Split On Damage
Big Slime does not die from a single large hit the way most bosses do. At health thresholds, it splits into two medium slimes. Each medium slime can split into two small slimes. Small slimes do not split further but can still attack your cats and block movement. In the worst case, a large board can contain eight or more slime enemies.
Board Flooding
The biggest danger is not the damage of any individual slime but the sheer number of enemies if splits are unmanaged. Slimes blocking your cats’ movement paths mean your melee cats cannot reach priority targets, and your ranged cats face incoming attacks from multiple directions simultaneously.
Recommended Team Composition
Area-of-effect abilities are the most efficient tool here. A Mage with a spell that hits a 2x2 or larger area can clear two or three small slimes in one action. Any ability that chains between nearby enemies is also effective. Avoid building a party that relies entirely on single-target damage for this fight.
Step-by-Step Strategy
1. Do not spread damage across Big Slime carelessly. Chip damage that splits the boss twice in the same round is worse than focused damage that takes out medium slimes before they split further.
2. After each split, immediately prioritise killing one of the smaller slimes before continuing to damage the other. Halving the board population is always better than letting splits compound.
3. Use AoE abilities to clear small slimes in groups. Spending a single action to kill three small slimes is far more efficient than targeting them one at a time.
4. If the board becomes too crowded, fall back to a corner and use area damage defensively to thin the population before advancing.