*edit*
Fighter 1, Improved Unarmed Strike, Power Attack, Cleave
Barb2, Toughness*
Barb3, Improved Grapple*, Intimidating Rage, (Skill Trick) Never Outnumbered
Barb4, Great Fortitude*
Fighter5, dungeon crasher
FoF6, Destructive Rage,
FB7
Bear9, Extra Rage
After getting bear warrior 1 level, take either 4 more levels of Frenzied Berzerker or bear warrior, then to finish it take warshaper.
Bounce bad guys off of trees.