Trait & Mutation Optimizer

Project HP, ATK, and EHP for any Blox Monsters monster at any level. Toggle Mega Evolution, swap Traits and Mutations, and stack party size for Timid scaling.

Maximum HP-

Base ATK-

Effective HP-

Synergy Rating-

Expected Reroll Cost-

Geometric estimate assuming p=0.05 per reroll for the target trait+mutation pair.

HP transformation

HP = baseHp + level × growth × mutationHpMul × (1 + traitHp + (naiveBoost ? 3 × traitHp : 0)) × megaMul

ATK transformation

ATK = baseAtk + level × atkGrowth × mutationAtkMul × (1 + traitAtk + (naiveBoost ? 3 × traitAtk : 0)) × megaMul + timidBonus

Why EHP matters

Effective HP approximates damage absorbed before the monster goes down. The optimizer uses HP × (1 + mutationSustain).

Dark Hiller scenario

Dark Hiller at level 40 with Brave, Harold, and Mega Evolution clears ~28,000 HP and a synergy rating of S+.

✉