A good counter for the Rain Stall I brought up earlier(And as I said, probably the only working stall set) is skill link cinccino, as it can tail slap it until it's down. Taunters and pokemon with Fake out+higher speed work well to.(Persian, Ambipalm).
with a 4x weakness to psychic you'll need to cover your bases, this is where x scissor comes in
Try sucker punch instead.