This was an idea I had in mind for a while.

Poor serpenoid was the weakest bakugan in the og series. But no more! He found a forbidden card that not only made him evolve, but really buff and seriously power hungry. And he's got a move called power syphon, where he'll bite his opponent and start to absorb/suck the power from the bakugan and make it his own. It'll make his muscles grow the more he absorbs power. So, he's pretty much an anthro vampiric serpent now. Drago and the gang beware, this evolved serpent is a pushover no more!

(I know I done the tail wrong, but it's my pic. deal with it. 😎)