"Give me Azmuth's brain!" - Ultimate Arctiguana's first and only line in the franchise.
Ultimate Arctiguana is the evolved version of a Polar Manzardill. He only appeared in the Ben 10: Omniverse episode For A Few Brains More where he shoots ice at Ben, Rook, Max and Azmuth. He is voiced by Eric Bauza. Ultimate Arctiguana design is based on the Pokémon Blastoise.
Appearance
Ultimate Arctiguana now has maroon armor covering his arms, torso and legs. He is also larger and has pale blue skin. Ultimate Arctiguana has three tendrils underneath his chin and two black "whiskers" that goes from his face to his mouth. His bottom set of teeth are also visible. He has two red eyes and has blue ice-like armor on his shoulders, back and elbows. He has two large cannons on the side of his back and the evolved Ultimatrix, which has four uneven spikes, on the ice armor on his back.