Sludge Wave or Heat Wave on this Tornadus-Therian?

So I just SR’d a 23/15/31/31/31/31 Timid Tornadus and Tornadus-T has always been one of my favorite Pokemon, and I wanted to try some unorthodox sets on it. This is the set I’m currently running:

Tornadus-Therian @ Choice SpecsAbility: RegeneratorTimid NatureEVs: 4 HP / 252 SpA / 252 Spe (if the HP isn’t a Stealth Rock number, please correct me)-Hurricane-Focus Blast-U-turn-Sludge Wave / Heat Wave

Which move, Sludge Wave or Heat Wave, covers more relevant threats in OU? Please give examples.

Pleaselog inorregisterto add a comment.

Heat Wave

OHKOs Ferros and Mega Scizors as well as provides better Accuracy then Focus Blast for Ice and Steel types.>252 SpA Choice Specs Tornadus-T Heat Wave vs. 252 HP / 168 SpD Ferrothorn: 424-500 (120.4 - 142%) – guaranteed OHKO252 SpA Choice Specs Tornadus-T Heat Wave vs. 248 HP / 8 SpD Mega Scizor: 548-648 (159.7 - 188.9%) – guaranteed OHKO

Sludge Wave also doesn’t manage to change the calcs against Clefable (2HKO regardless).

252 SpA Choice Specs Tornadus-T Sludge Wave vs. 252 HP / 96+ SpD Clefable: 248-292 (62.9 - 74.1%) – guaranteed 2HKO after Leftovers recovery252 SpA Choice Specs Tornadus-T Hurricane vs. 252 HP / 96+ SpD Clefable: 214-253 (54.3 - 64.2%) – guaranteed 2HKO after Leftovers recovery

Hurricane still lands the 2HKO on Clefable.

Sludge waveis best as its accuracy is good

Sludge Wave deals damage and has a 10% chance of poisoning the target.