FusionDex

The white wool covering the bodies of Paffy is actually tendrils of a parasitic fungus. While the fungus doesn't appear to cause the Pokémon any direct discomfort, Paffy eat considerably more than other Pokémon of their size to maintain it.

Its fleece quality changes to generate strong static electricity with a small amount of wool. A Paffy has parasitic tochukaso mushrooms growing on its back.