Cryolophosaurus [PvP Cross]

A small but deadly theropod that fights with a freezing liquid stored in its throat. It can spit this as a torpor-inducing glob to knock enemies out, or exhale it as a freezing blast that triggers a Hyper State, boosting its own speed, damage, and giving its melee attacks a stacking debuff that weakens the target's resistance and speed.
What makes it especially valuable is that its freezing breath can also be used defensively: applied to allies, it grants Ice Armor, a big boost to damage resistance at the cost of some speed. On top of that, it deals bonus damage to frozen or sleeping targets, making it an excellent taming and support companion in a fight.