FusionDex

Arckey's temper is so great, it radiates around it and spreads to other creatures. It lives a solitary lifestyle, as being around others would cause the groups to degenerate into violent mobs obsessed with fighting one another.

When it starts shaking and its nasal breathing turns rough, it's a sure sign of anger. It is described in mythology as the Pokémon that shaped the universe with its 1,000 arms.