FusionDex

Metatrum's gigantic jaws shred metal plates like paper, which is useful to it as it survives on a diet of iron and steel. Wild Metatrum are most often found in junkyards, ravenously devouring scrap metal.

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. Metatrum has four brains that are joined by a complex neural network.