Okay so this is something ive tried with a few freinds and takes luck but when it works its pretty fun:)
Medicham
Jolly
Leftovers or Life Orb
Evs
252 Attack
252 Speed
4 Hp
Move set
Swagger - Tm
Power Trick - Breed Mr.Mime
Ice Punch- Start
Fire or Thunder Punch - Start
Anyone got any ideas...