-Lethargy:
Additional damage (max lvl 5): This is what makes Lethargy a good spell: it enhances the Strike damage in 100%!! The problem is to define what Strike damage is haha. Maces and some Monk's and Paladin's skills are Strike, but there are some Swordsman's too, like Highlander's Cartar Stroke, Cataphract's Earth Wave, Corsair's Keel Hauling... In other words, its good to kill things in a party with those characters. 100% more dmg is absurd. I know this build is intended for solo, but there are dungeons and mercenary missions on this game which are made in automatically formed parties, and having Lethargy on them will be very useful.