FusionDex

The shaking of the rattle on Arcans's tell creates a strangely deep and reverberating echo for large distances. While most Pokémon are warded off by the noise, serpent-like Pokémon find themselves compelled to flock near Arcans.

An Arcans curls itself up in a spiral while it rests. It is described in mythology as the Pokémon that shaped the universe with its 1,000 arms.