FusionDex

So long as the pink pearl in Clampyu's body remains intact, they can regenerate lost limbs and organs with ease. Many aquatic Pokémon exploit this fact by keeping the core of Clampyu safe so that they can consume the regenerated limbs.

It gathers with others in the night and makes its red core glow on and off with the twinkling stars. A Clampyu slams its shell closed on prey to prevent escape.