For my second level two spell I chose invisibility. It may have been tough soloing before as a sorc but now it's cake, I just summon some scorpions and vanish from sight and I can finish most quests with a flawless victory. It's only after I gained the ability to not be seen that I realized how awesome it is that most enemies aren't worth exp. now i can walk through entire quests, kill the target and vanish again.
It's really hilarious having the entire dungeon running around trying to find you as you walk past. They fire arrows at walls and attack the open air on the other side of the room trying to locate the person that keeps appearing, killing and then vanishing again.
