180 HP/184 Speed/146 SpA
-Heat Wave/Dark Pulse
Almost similar, just less bulky than Heatran. Switch it into something that switches out, set up the Sub, Torment, and Protect. The first three moves are like TormentTran exactly. However, since it lacks Lava Plume, Heat Wave and Dark Pulse become options for it as STAB moves. Heat Wave has a chance of burning while Dark Pulse is for STAB.
The EVs invested into HP allows it to recover optimum HP from Leftovers. 184 Speed EVs coupled with Timid Nature outspeeds 252 Speed EV - 100 Base Speed Pokemon without +Speed Nature, such as Adamant Salamence, if I calculated correctly. The rest go into SpA to give Dark Pulse/Heat Wave a little boost.
Super Fang becomes an option that can take over the last move, and when combined with Toxic Spikes, it becomes a deadly combination. In this case, the EVs for SpA can go into Speed and Special Defense. Beat Up can be used for Blissey, but not necessary.
Don't worry, it's completely outclassed by the original Heatran.