Request: Necromancer don't hit undeads

[JudgeMan]

Having fun with the Sacrificial Knife mod right now. One thing is annoying tho, necromancer's cloud attack hits allied undead troops (would want it to be like druid's aoe attack but only for undeads). Tried searching a bit in the ses.kfs and data.kfs but couldn't find anything.

So, if anyone can find where are necromancers parameters I'd be grateful.

Thanks.