Beginning of the battle, my friend sends out Attack Deoxys... I send out Farfetch'D. I'm not entirely sure what move it was, but whatever it was, it allowed me to get a free Swords Dance on Farfetch'D. He made the same mistake again, and I got another free Swords Dance. Fearing for my Farfetch'Ds life, I used Night Slash- killed Deoxys, OHKO.
I killed DEOXYS with a FARFETCH'D.
But it gets worse... the next thing he sent out failed to kill Farfetch'D, and I Baton Passed to Aerodactyl... I then proceeded to wipe out four of his team members with a Choice Banded, x2 Swords Danced Aerodactyl before dying.