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Raitrum are rumored to be born when powerful thunderstorms strike ancient fossils, revitalizing the long-extinct Pokémon and re-energizing them. Their roars are accompanied by claps of thunder and bolts of lightning.

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. Raitrum embodies the speed of lightning.