FusionDex

Arctress's dense hide is strong enough to resist the force of a black hole. It compresses its iron core so hard the core is on the verge of nuclear fusion.

Wild Arctress often use their tails to hold onto tree branches and swing themselves around to gain momentum before throwing their iron-hard bodies at prey. Their tails are remarkably powerful as a result, but are too short to be as useful in battle.

It keeps itself inside its steel shell. It is described in mythology as the Pokémon that shaped the universe with its 1,000 arms.