FusionDex

Aggtrum stuns anyone who dares to challenge it with a guttural, bone-chilling metallic roar. Its metal jaws can exert a force powerful enough to crush even diamond.

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. Its iron horns grow longer a little at a time.