Another Heatran set:
Heatran @ Leftovers
Trait: Flash Fire
EVs: 252 SDef / 252 HP / 4 SAtk
Calm Nature
- Torment
- Protect
- Lava Plume
- Substitute/Toxic
I haven't seen any of these recently, but Heatran with torment can really shut down a lot of attackers, since most only have one attack...