FusionDex

Arcmo-o clash their scales together to emit myriad noises that disorient or unnerve others. There are few enduring legends that claim an Arcmo-o's scales will reach their pinnacle after being shed and regrown a 1,000 times each.

Its rigid scales function as offense and defense. It is described in mythology as the Pokémon that shaped the universe with its 1,000 arms.