My Haxorus I hate being limited to one move but he is the strongest user of outrage
Yes because outrage is a physical move and haxorus has 147 attack .
Even though it has great power and speed a dragon pokemon has no other OFFENSIVE advantages other then dragon itself so I recommend getting dragon dance .
Hold a persim berry and no need of dragon claw because outrage has decent pp so get moves to cover the disadvantages like a fighting move.
And maybe earthquake.