I got this power the other day and it really is amazing. I plan on slotting mine 1acc 3dam 2recharge, all my other attacks are 2acc 3dam 1recharge. When it's slotted with SO's you will be able to 1 shot yellow minions. Groups of 4 are insanely easy now, lead off with AS, then 1 shot the next using ET then scrap the 3rd and by the time you're ready for the 4th placate and hit it with another AS.
As for it being too good, I think a tradeoff with ET is you cant crit with it, dont know if it's suppose to be that way to counteract it's incredible damage or if it's a bug. I would assume it's suppose to be that way because if you could crit Energy Transfer that would basically be like a 2nd uninterruptable AS.
