Zygarde

Zygarde is a serpent with a lot to hide. Normally, he appears to all in something known as 50% forme, which much resembles a snake. He also has a 10% forme, which resembles a dog, and his Complete Forme, in which he has re-obtained 100% of his cells, and resembles something akin to a humanoid with compound eyes. The design of Complete Zygarde inspired the Beyonder's Biohavoc Forme, with the tendrils protruding from the back of his head remodelled into the four spike-like appendages on the back edge of the helmet.