Try Full Wizard Enchantments for All items. Open with 3rd skill then 1st and burst with 4th. If you are lucky to stun with 3rd skill you are likely to win.
Full Wizard Enchantments are best because this is only class that have auto-attack based on int not str. And with full wizard ench you can crit for 600-700 damage. (with full wizard ench i have 35% critical chance)