I found a combo that works for level 40 engineer, pretty consistently, but you have to be fast (and make sure all your skills go off).
Auto attack -> Leech -> Wither -> Decay -> Pain
Your auto attack kills him before he can run away. I'm nearly full INT and have leech, wither, and decay all maxed and pain at lv 1 and it works for me, might not work for someone with another build but it's possible. I just mapped those four skills in that order and it works almost every time now unless I mess up.
edit: Actually I take the "you have to be fast" part back. Do each step but don't just fire them off rapidly.. the timing is actually more important than I thought. But it does work, I promise!
Bookmarks