its crap
fiirstly coh is the worst possible choice, with the apperance of torches it seazy to get str, so go with forti eventually enigma
secondly defiance is crap, it wont help, some time ago i laughed at all sying that barb beats smiter, yes thats true due to the range, defiance will only make duels last longer
U have to put some points into foh/ligh aura and make cta in +X conv scepter , it will be the only way to beat barb, it will act as annoyer forcing babrb to attack, furthermore foh will also work well against other chars
regards Lukasz