OFFICIAL TRAINER ARTWORK
Chemist official trainer artwork
Official artwork

Batomon Showdown // Trainer passive

Chemist

Your Toxic monsters have +3 Poison. When any monster levels up, increase this effect by +1 Poison.

TrainerSteam build 26170127

BatoForge strategy notes

Using Chemist

Chemist gives Toxic Batomon +3 Poison, growing by +1 whenever any monster levels up. Non-Toxic merges can feed that growth, so the whole team’s upgrade path matters.

When it fits

Start with Toxic abilities you want to keep and duplicates you can reasonably finish. A team buying mostly isolated high-rarity units will have fewer chances to grow the bonus.

How to use it

Count completed level-ups when planning the next increase. Prioritize duplicates that strengthen the board as well as adding Poison, then check how each Toxic recipient’s ability uses that stat.

Example

After three level-ups, the Trainer bonus would be 3 + 3 × 1 = +6 Poison. A non-Toxic unit can supply one of those level-ups; three unmerged purchases supply none.

What you give up

Buying a weak duplicate just for +1 Poison can delay a more urgent upgrade. The more useful Toxic recipients you retain, the easier it is for a sensible merge to benefit the whole plan.

Build 26170127 · Updated October 20, 2026 · About these guides · Report an issue

Official version history

Official patch mentions.

v1.2.0Toxic starting Poison increased from +1 to +3.Open patch →