My battle mage is absolutely death. Not STR based, but INT primarily.
Anyone who discounts hybrid classes, hasn't figured out how to play.
My hybrid mage is 5 in Geo, Pyro, Witchcraft, and Aero I think. Around 18int, and 15str. Glass cannon of course.
She blocks around 75% of all melee with a shield, something over 200 armor, way over 100% resistances for everything.
Cranked up Const+speed.