Actually, I run a good annoyer set in RU:
Accelgor @ Life Orb
Nature: Calm (I know, it's a bit strange)
Evs: 252 Sp.Def/252 Speed/6 HP
U-Turn
Yawn
Encore
Me First
U-turn for scouting and getting away, Yawn to force switches, Encore for those stat boosters, and Me First is a...