FusionDex

A complete fossil record of Relitrum was only recently unearthed. In the most distant era of prehistory, it resided in coastal areas, preying on fish and other ocean-adjacent creatures.

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. A Pokémon that was once believed to be extinct.