I just fought the most irritating pokemon ever.
Hidden Ability Liepard with Substitute, Swagger, Foul Play, and Assist. Why Assist, you might ask? Well, the other members of the party knew only one valid move for Assist to copy. You wanna know what it was? SPORE.
****ING SPORE. SPORE WITH FREAKING +1 PRIORITY BECAUSE PRANKSTER.