User blog comment:Aldari1994/Heidi, the Gun Witch/@comment-3148314-20150930001042/@comment-25206998-20151001102646

I don't think full AD could workk too well, it would be possible but would be rather weak, since the spell attack would benefit from Magic Pen.

Hmm, so you kind of want it to work like Twitch's or Kalista's E?

Something similar, gives her some reliable(ish) damage, since Q is a skill shot and enemies can dodge your W.

Active: Deals magic damage to haunted enemies based on a percentage of your own total magic resistance, but without stealing it again.

That would be interesting. Would make SV and WE powerful items that give you damage and they give amazing bonuses and stats that synergies well with her.

''Active: Instantly steals 25 MR (i.e. the fully stacked passive) from all haunted enemies nearby and deals magic damage based on the total amount that was stolen. The passive is disabled while the ability is on cooldown.''

This feels like the weaker and less favourable option of the 2. Its still pretty good since you can Haunt and instantly apply this for lots of damage but if you are focusing a target that you have already stolen MR from, the damage will be low and that feels weak. As well the passive disable makes it weak again since your spell autos will hurt a little less when the buff runs outs.

All in all I really like the 1st idea and will go about changing that. Thank you.