Aftermath

https://vignette.wikia.nocookie.net/pmysteryuniverse/images/a/ab/Aftermath.png/revision/latest?cb=20190906062552&format=original Aftermath is an Ability that damages anyone near in a one-tile AoE when the Pokémon is defeated.

Effect
If the Pokémon is defeated, it will explode, damaging every Pokémon in a one tile AoE radius for 1/4 of their individual max HP. Aftermath will only damage other Pokémon if the map has no moral (black map name). It is negated if there's a Pokémon with Damp on the floor.

Pokémon with

 * Voltorb
 * Electrode
 * Drifloon
 * Drifblim
 * Stunky
 * Stuntank
 * Trubbish
 * Garbodor