I'm going to go with Polkaroo, my Scrappy female Kangaskhan.
Focus Blast, Drain Punch, Focus Blast.
Now it's time or subs! Ahem. Aerial Ace if he uses Double Team. Uproar if he uses Hypnosis. Aaaand, if he uses Curse like I suspect he wants to, Roar loudly to interrupt the move (but don't even try this if you're Taunted).