Itemless mixed attacker Tornadus
Tornadus (M) @ No item
Ability: Defiant
EVs: 8 Atk / 248 SpA / 252 Spe
Naive Nature
- Acrobatics
- Heat Wave
- U-turn
- Grass Knot
Simply put, Tornadus has both mixed offenses and it is a waste choosing only one side. The key point of the set is the replacement of Hurricane, strong but inaccurate, with Acrobatics. The lack of item can be useful as a gimmick to absorb better some random unboosted Knock Off.
This EVs spread allows Tornatus to use its special coverage move, while using U-turn + Acrobatics (a 110 base power move with STAB and 100% accuracy). The ability Defiant helps with the special side, but I think that Heat Wave and Grass Knot needs more immediate power because they are the two main coverage moves without the STAB bonus.
I want to put Knock Off there, but 4 moveslots are really few.
The best part of this set is that Tornadus has a lot of moves, especially on the special side to choose from, so pick whatever moves you feel more useful (such as Sludge Bomb, Dark Pulse, Focus Blast, Knock Off, Superpower and so on) depending on what your team needs to cover.