[deluge]

I came up with this set after wondering how Bastiodon could avoid switching out of everything packing a Fighting/Ground move.
The result turned out much like Torment Heatran just worse.

Impish Bastiodon@Leftovers
252HP, 252Def, 4SpD
~Torment
~Substitute
~Protect
~Taunt/Iron Tail/Roar/Toxic

Bastiodon's weaknesses aren't seen together too often on the same set so there is a good chance most Pokemon will have only one move that can break its Sub.
Since its offenses are very poor the best it can do is wait for Sandstorm + Toxic to take its toll: Shuckle with better resistances.
Taunt prevents setup, phazing, or healing, Roar for residual damage, Toxic can be used to poison floaters and Iron Tail to have an attacking option.
The latter, which I never used, has poor accuracy but decent PP, 150BP including STAB and a good 30% debuff chance when it connects.

Steel types are obviously resistant to this strategy but Taunt or Torment can help get in a counter safely as long as you're not facing Magnezone.
Also, a number of Steels are commonly choiced and will be forced to struggle every other turn due to Torment.
Obviously, almost anything with Taunt disables Bastiodon completely unless you were lucky enough to have taunted on the switch.

I used this briefly as the core of a stall team (with Taunt) and I was quite OK with it.
It only shares a Water weakness with the necessary Hippowdon and that was taken care of by Roserade who can both set up Toxic Spikes and frighten Water types.
However, Heatran is easily superior unless you are running Taunt over Lava Plume when Bastiodon's bulk can make a case.
[BTW, just realized Probopass can run the same TormentSubProtection but with Pain Split]