Take RSERalts the Ralts. Since IAR hates the Ralts I give for third gen games, you must use RSERalts to troll IAR as much as possible.
Firstly, IAR loves Gliscor so much it's his avatar. Solo all Flying types and all Ground types between Petalburg and Verdanturf.
Secondly, IAR likes to think he's powerful just because he has the OP of this thread. Show him he's not that powerful by soloing Brawly, a character almost as overconfident as IAR himself.
Finally, solo Wally in your last encounter at the end of Victory Road.
Just A1 for short. Apparenlty people can't spell Treadshot.
Recent Scramble link
Note: Yes, it is spelt wrong. Deliberately. Shut up, you're not the first to notice.