
FormerFiend |

I'd suggest bloodrager with the abyssal bloodline; 4th level bloodline power gives you an enlarge person that works regardless of type(trox being monstrous humanoids normally can't benefit), and the 12th level power increases the strength bonus from raging(first by 2, then 4 at level 16, and 6 at 20).
Drawback being that trox take a -2 to all their mental scores and it gets a little MAD, but I'd say that tradeoff for a huge-sized trox and accompanying weapon is worth it.

FormerFiend |

Well the great thing about bloodrager magic is, like sorcerer magic, it's the kind of magic you get with no training; it's just an innate power that the character has. X-men style.
But yeah, regular barbarian would probably be the way to go if you don't want any magic at all. Don't have to worry about the mental score penalties, can just focus on the physical abilities.