Battle Sage != Hindsight Sage.
Battle Sage deals damage both with normal bolts, hindsight bolts and melee. Obviously that means you need to balance a lot of stats(STR, DEX, AGI, INT). They are also VERY rare, I don't think I ever saw one in my life.
Hindsight sage is a cookie cutter fast build to 99 - 99AGI, 99INT, get linked and that's pretty much all. Bazerald > fists, BTW.