Whimsicott (Japanese: エルフーン Elfuun) is a dual Grass/Fairy Pokémon introduced in Generation V. Prior to Generation VI, it was a pure Grass-type Pokémon.
It evolves from Cottonee when it is exposed to a Sun Stone.
Pokédex Entries:
Black: Like the wind, it can slip through any gap, no matter how small. It leaves balls of white fluff behind.
White: Riding whirlwinds, they appear. These Pokémon sneak through gaps into houses and cause all sorts of mischief.
Moon: This Pokémon appears, riding upon the wind. But if the wind gusts up, it'll blow the cotton on this Pokémon's head clean off.