Current mechanic

On Bought

On Bought effects activate when a Batomon's acquisition counts as a purchase.

Balance 23Steam build 25448953

Exact rules

  • An ordinary shop purchase activates On Bought once, plus any additional activations from effects such as Echo Charm.
  • If the purchase causes merges, On Bought waits for the merge chain. It uses the surviving Batomon's On Bought ability and resulting level.
  • Echo Charm adds one activation. The game adds these repeat bonuses to the normal single activation.
  • Not every acquisition counts as a purchase. Lootbox and Recruiting Flyer use the non-purchase path; Voucher explicitly counts as a purchase.
  • An effect can explicitly activate On Bought without a new purchase. Gemwing does this to the ally above when Gemwing casts.
  • Gemwing activates that ability 1, 2, 3, or 12 times at Levels 1–4, multiplied by one plus the On Bought repeat bonuses.
  • On Bought is separate from effects that react when another Batomon is bought. It is not an ordinary cooldown cast.

Current build examples

Batomon

Leafleap

Level 1On Bought Give all monsters in the shop +5 Damage for the rest of the run.

Leafleap applies its Damage shop enchant through On Bought.

Trinket

Echo Charm

Your monsters' On Bought abilities activate an additional time.

Echo Charm adds one On Bought activation.

Batomon

Gemwing

Level 1On Cast · Activate the On Bought ability of the ally above 1 time(s).

Gemwing explicitly activates the ally above's On Bought ability when it casts.

Item

Voucher

Buy a random monster from the shop for free.

Voucher's free recruitment still counts as a purchase for On Bought.

Common questions

Does receiving a free Batomon always activate On Bought?
No. The acquisition must count as a purchase, or an effect must explicitly activate On Bought. Voucher counts as a purchase; Lootbox and Recruiting Flyer do not.