Dragon / Ice
The Pokemon raises the foe's PP usage.
The mythologies of the trio are implied to be connected, despite having no true relation. The origins of Zekrom and Reshiram are told in legends, as they were once a single powerful Dragon Pokémon used by twin heroes in order to create the Unova region. But the brothers each sought something different in life—truth for the older brother and ideals for the younger—and they began to argue, then fight, over whose side was right. The single dragon, in response, split into two Pokémon: Reshiram, who sided with the older twin, and Zekrom, who sided with the younger twin.