Who can clear 5.1.5 power drain quest?

Elar

I have been trying to become uncollected but the Act 5 Ch 1 quests are sometimes annoying, it took me two+ months to do ch 1 (without revives) and now I'm stuck on Ch 5. Who are the best champs for this? I mostly have four stars..I used Black Widow (D.O), BW (C.V), Stark Spidey, Warlock and Wasp (replaced with Corvus later).
Or who are immune to power drain?

LordPSN

power drain? I dont remember encountering that node.