Vallaks are gargantuan, fire-spewing reptilianoids that possess a number of dinosaur-like traits. Hailing from a mysterious past and an unknown homeplanet, Vallaks are the ultimate weapon used by the Ravagers that is not either the Quadruped Fortress or the Mothership herself. They are very quick for their size and can move at alarming speeds thanks to the length of their legs and excellently-adapted running posture.