Whimsicott

Whimsicott's unique Fairy / Grass typing and diverse movepool allow it to function effectively as a support or offensive Pokemon in the UU tier. With access to Prankster, all support moves gain priority. Usable Special Attack makes Whimsicott a natural check against the many Choice-locked and setup Dragon-types in the tier, such as Haxorus and Hydreigon. A blistering Speed allows Whimsicott to outspeed all base 115 Speed Pokemon and lower, such as Mega Absol. However, Whimsicott is not powerful enough to take on opposing checks, despite outspeeding them. Furthermore, its Special Defense leaves much to be desired, and it is easily worn down by even the weakest of special attacks.