Ulasht

Ulasht, the Hate Seed is a legendary hydra that inhabits the ruins of Ravnica left behind by the Gruul Clans. Ulasht is unique in that its multiple heads are hellions, a worm-like creature with tentacles surrounding a tooth filled mouth.

Though not officially a part of any clan, it is revered by many Gruul as a natural embodiment of pure destruction and mindless rage.