I sort of want to post another set because the thread hasn't seen it yet. Not claiming it's mine btw, just want to get it out there.
Breloom @ Choice Band
EVs: 252 Atk / 4 Def / 252 Spd
- Low Sweep
- Mach Punch
- Bullet Seed
- Stone Edge
CB Loom should not be taken lightly, it's an extremely hard-hitting threat that can decimate teams if given even the slightest opportunity. Technician-boosted STAB Low Sweep hits like a truck, and it lowers the opponent's Speed by 1 stage to boot. This means Latios can't switch in with impunity, because it'll be lowered to below Breloom's Speed and 2HKO'd after rocks by Low Sweep. Other faster threats have to beware of this as well. CB Mach Punch is excellent secondary Fighting STAB, and it's one of the strongest priority attacks in OU, rivaling CB Scizor's Bullet Punch. Bullet Seed is great secondary STAB, and an excellent tool for breaking Substitutes if necessary. Stone Edge rounds off the four-move combination for a clean OHKO on Tornadus-T and some much appreciated extra coverage. No Spore because it's very underwhelming on a CB set. Adamant > Jolly for more power, Jolly is a possibility to make Tornadus-T slower than Breloom after a Low Sweep, but you lose the ability to 2HKO Latios after rocks, which is invaluable in my opinion.
Give the set a shot, it's better than it looks.