Thanks for your opinion man. Although I think Rock Slide isn't yet available, and I'm pretty sure Earthquake isn't available yet. I'm going to definitely put Poison Jab on his moveset, but I'm not sure about Dragon Claw, because Outrage is much stronger, and the only problem is the confusion, but you get 2-3 turns to use the most powerful Dragon-Type STAB in the meantime. And as Lord Drakyle said, although it's a bit of an item slot waste, you can always have Haxorus hold a Lum Berry to heal its confusion.