I've been using this set with great success
Bronzong @ Weakness Policy
Ability: Heatproof
EVs: 252 HP / 252 Atk / 4 SDef
Brave Nature
- Gyro Ball
- Trick Room
- Earthquake
- Rock Slide
I'm sure it could use some tweaking but the basic idea is to bait people into using a fire move on it which...