Iksar = Natural Health Regen.
Your character in this case
necromancer will die when their health hits 0.
No other race has that for necromancer. Natural Regen is awesome even on
troll who can not play necromancer.
It helps with leveling & is always active. Stacks with regen items and spells. Adds up to becoming a talk worth subject about passive healing for classes that can be iksar or troll..
I have two high 50 classes one with natural regen and the other without. It saved my life a few times in places such as Kurns tower(lvl 12-18/20) basement.
Unless you hate Iksar faction. I could see rolling otherwise for RP or faction reasons. People may still comment in game though. "Why not iksar?"
I see Iksar Necros camping felwithe guards(lvl 49+) I think. If you need plat,. it's a solid option.
(Necro pets)