Toxic_Shadow

Voidsense. It may not be good to take EF so early. I didn't take EF till I was at lvl 22. I just couldn't see me using it and having enough end to keep RI up while blasting because like you said when RI drops it can be deadly. EF is a great power but I don't think it is that necessary until you are in the 20s. If you are asking can EF wait I would say yes. It worked for me and I soloed up into the early 20s without it.