Well, I just avoid the going back in Summoners Rift through creeping, I'd regain HP/MP fast enough to regank instead of going back in a 1/4 Health state. Well, it's just a personal setting for me out of convenience. I also take it for the beginning HP/MP bonus. As for Deathfire Grasp - yeah it's only good for tanks, and true this build would have trouble fighting a meat shield.. but I'd just have to rely on my teammates then.

I dont get the innvervating locket... BTW Evelynn is a nuker and she is played best that way with deathfire grasp. The rest are standard hybrid items. Looks ok, can be way better...
positive nor negative

Well, I see those outrageous 500 AP builds, what kind of late game are you planning on ? 1h+ games? But ty for the feedback ;) I'm still playing with the runes and adding a description

Well,at all not a bad build but it could be way better.