User blog comment:Aldari1994/Heidi, the Gun Witch/@comment-3148314-20150930001042/@comment-25206998-20150930135442

Passive: Okay, I don't think it should crit due to hit being an on-hit effect. Your third attack is basically treated as a single target spell, deals only magic damage and benefits from Magic Pen. It also will proc things like ludens, gunblade, Kass e, maokai passive etc but not crit, apply shiv or count as a basic attack (unsure about nashor's tooth would work)

The point of this champion is not too be a traditional AD carry, more of an AP carry. So converting the attack to AP would negate that and cause itemization to be really bad.

E: I don't want crit to bee part of the kit as it is just a stat to consider. I have no idea what E should be but I do like the idea of the active only affecting Haunted enemies. The vision thing though is really weak as you will have to Haunt the target first.

R: Thats the problem right now. The ult is really unoriginal and I'm unsure how to proceed. Considering it is an AP champ I was thinking of having something that deals damage in an AoE (something like Eve but something more than just oE floor) and move the fear from E to R on Haunted Enemies. Thoughts?