if so what nature?
Outrage(you said it)
Ice fang(covers grass types)
Earthquake(covers electric types)
aqua tail(stab) or waterfall(if you don't want aqua tail and stab)
Yes, it can I would reccomend making it hold a Persim Berry, because it cures confusion. I would go with Adament nature. (+ Attack -SpA)
Hope This Helped :D
Yes, he can use outrage well, and if you want a nature, pick Modest, Naughty or Adamant. Those specialize in attack and special attack. There is more, but your gonna hafta go to bulpedia.com to figure that out.