Okay, I just want to say that I was for this guy whenhe was first revealed. You all know that I hope. And looks like I was right, although not about it being a Bug type :) This Pokemon, while in my opinion not going to be a replacement for Garchomp, might replace Salamence. At the very least it makes another great addition to the powerful Dragon line. He even makes it onto my Black version team.
Ability: Mold Breaker
EVs: Attack, Speed, Sp. Def. Nature: Adamant
Outrage/Dragon Claw: Outrage is more of an Uber move. If it is Overused, Dragon Claw is your best bet.
Dragon Dance: I like this move a lot better than Swords Dance. Let's face it, this makes anything into a sweeper. And since Ononokusu is already a sweeper, this makes it a super-sweeper.
Earthquake: Make use of Mold Breaker, take down anything that thinks they are safe from Earthquake just because of Levitate.
Night Slash: Okay, I expect some arguements on this one. But if this guy is Uber like I think he is, then that means there are going to be a lot of Psychics to deal with. Even if he isn't Uber, I really like this move.