plugins/AdvancedPets/abilitiesfolder, name format should be
<mob name>.yml, e.g.
description- text displayed next to pet in /pets menu. Explains what abilities pet has.
chance- chance of ability activating when triggered by owner
cooldown- how long after activating ability wont be available (will be on cooldown)
%owner%) or other player/entity (
%other%). This way abilities are given towards the assigned player.