Preyas is the guardian Bakugan of Marucho from Bakugan series, he can change the attributes to Subterra, Darkus and Aquos in a battle, Elfin has known Preyas before he was captured and turned into bronze statue by the Vestal. Elfin has a crush on Preyas, Preyas lives on New Vestroia in Bakugan Mechtanium Surge with Amazon, his student who changes attribute to Subterra and Aquos.