Yikes I must be doing something wrong then. My lvl 11 Engineer (Thief I guess?) gets smacked almost immediately if I take on anything 2 levels above me. In fact, I still have a quest in the Nightmare court where I have to escape the zone. The mobs are now lvl 8 but I get destroyed with 3 of them attacking me. I can't leave the area until the next one has mobs my same lvl else I just find myself teleporting back to repair often.