Chomp

Skill. Caster gains 500 Health after destroying target touched smaller creature.

Touch Skill. Gain 500 Health. Destroy target smaller creature.

[edit] Related skills

This skill is used by Ceratadons, Ferothraxes and Tyranni.
This skill not only destroys the creature, it seems to make it disappear entirely: it will not display a death emote, nor will it leave a corpse (exploited or otherwise).
Though it can be used offensively on player-controlled and masterless minions and spirits, creatures that possess this skill will also attempt to use it on their allies, including Raptors and (unconfirmed) Angorodons for the health gain.