Gen 9 NU
Life Orb Set:
Braviary (M) @ Life Orb
Ability: Sheer Force
Tera Type: Normal / Flying
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Body Slam
- Bulk Up
- Close Combat
- Brave Bird
Body Slam is STAB that is boosted by Sheer Force + Life Orb. Specifically in Showdown!, the Life Orb will not damage you. It won't work in S/V, only Showdown! (I learned the hard way.) Bulk Up is for boosting, obviously. Close Combat does absolutely massive damage, but you might not survive anything afterward. Brave Bird is more STAB that does crazy damage at the cost of his HP. But his HP is pretty high, so... I guess you'll be fine. Tera Normal / Flying is for offensive purposes.
Choice Band Set:
Braviary (M) @ Choice Band
Ability: Defiant
Tera Type: Fighting
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Double-Edge
- Iron Head
- Close Combat
- Brave Bird
This set does more damage, and you get to be as reckless as you want. Double-Edge is STAB that hits really hard, but you lose HP as a result. You guys should use DE more often. Anyways, Iron Head can hit Fairy types that you can effectively bait by using your Tera. Otherwise, there's always Close Combat to make use of your Tera + it hits really hard. Brave Bird is Double-Edge but Flying type. Not much to say here.
Me personally, I recommend the Choice Band set. But it's good to have options, right?