FusionDex.org

Voltrum can channel much of its internal electrical force into its lower jaw. Once charged up, it lets loose an explosive roar that creates a devastating electric burst in front of it.

Thanks to its gargantuan jaws, which could shred thick metal plates as if they were paper, it was invincible in the ancient world it once inhabited. It bears an uncanny and unexplained resemblance to a Pok? Ball.