the fourth mage spell in the line up is level 72 magic nuke called Shock of Silvered Steal Rk.III does between 2740 and 2740 damage.single target dd spell. takes 6.3 sec cast and mana cost of 552 hope helps. Spell number five is level 73 scorching skin Rk. III improved DS lasts for short time 390 mana cost.