I now stand corrected, and have edited my post.
Sorry for wasting your time
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Edited by justazaya: 10/23/2015 8:22:12 PMI am at 20 out of 30 using Black Hole. You're doing something wrong. Go into Mayhem and experiment. My assumption is if they die while tethered, you're good to go. I even got a couple points in Inferno Doubles.