Life Orb Wallbreaker

Tornadus-Therian @ Life Orb
Ability: Regenerator
EVs: 52 Atk / 204 SpA / 252 Spe OR 252 SpA / 4 SpD / 252 Spe
Naive / Timid Nature
- Hurricane
- Superpower / Heat Wave / Focus Blast
- U-turn
- Knock Off / Nasty Plot / Taunt
A classic from back in gen 6, Life Orb Tornadus-T is shockingly hard to switch into consistently thanks to its high Speed, excellent coverage, nuclear Hurricanes (though less so than Torn-I), and solid range of utility options. The moves are pretty self-explanatory for the most part, but I'll try and explain the less standard options briefly.
First and foremost, LO Superpower lets Tornadus-T bypass Blissey entirely, with 52 Atk + Naive always 2HKOing it as it switches in, while also being a 100% accurate option to hit Pokemon like Tyranitar and Heatran with, OHKOing non-Chople variants of the former and always 2HKOing max HP Tran after Stealth Rock.
Of course, Life Orb is useful for stuff other than going mixed. Aside from turbocharging Torn-T's Nasty Plot set—letting Torn again such lofty goals as OHKOing mixed def Toxapex at +2 and OHKOing AV Galarking after Stealth Rock at +4 (NP on switch, NP again on Future Sight, Hurricane to one-shot)—the additional firepower behind unboosted attacks is also welcome, 2HKOing SpD Mandibuzz and mixed def Toxapex with a little chip, among other things.
One of the main advantages of Taunt is that it lets Tornadus shut down moves like Teleport, Thunder Wave, Spikes, Defog and Recover, which is especially useful versus the likes of SpD Toxapex—a thorn in non-boosting Torn-T's side—while helping out versus Pokemon like Corviknight, Blissey, and Heatran if you lack the appropriate coverage option. It's mainly there for Superpower variants though, as you probably wouldn't want to carry Nasty Plot alongside it.
One thing Torn has over a lot of other Life Orb users is access to Regenerator, meaning it can circumvent some of the wear and tear that comes with its item choice, though on the flipside its SR weakness means that Torn-T needs consistent hazard control to not go into Regen debt after one attack—Tapu Fini, Corviknight, Zapdos, and utility Drill come to mind, and Mew/Lati@s might be OK too once Spect is gone (especially considering they won't face competition as a fogger from shitass Defog Hydra anymore).