Contestir

Contestir is an villain-turned-antihero and the Guardian Bakugan of Zenet from Bakugan Gundalian Invaders, he was brainwashed by Kazarina, but he was later freed from her hypnotism by Gill along with Zenet. He can transform into any forms Bakugan and copy their voices.

Trivia
Contestir shares similiarities to Mystique from the X-Men movies, both of them can take the appearences of the characters and copy their voices.

Similiar Heroes
Mystique (X-Men Movies)

Beetlejuice

Preyas

Helios (Bakugan)