Chamelia is a non-attributed (White One) Bakugan and was Katie's first Guardian Bakugan. It was sent to the Doom Dimension by Masquerade and Mecha Chamelia took his place in the arena, and more importantly as Katie's Guardian. Drago had said he thought they were extinct. He is exclusive to the Bakugan: The Evo Tournament book. Chamelia has the ability to mimic the attribute shape and size of the opponent.
Some fans believe that Chamelia's soul was later transferred into its new mechanical body.