Deathfog is actually a great example of good balancing undead I mean it kills any living being but heals undeads I think that op just wants same values and buffs for all races and just visual differences. Like skeletons look "boney" elves have "pointy" ears, dwarfs have beards and so on.
I dont get it what op wants the undead have solid + for every - they get.
They seem quite solid race to me, only thing that might bother new players is how people would react on udeads but that is up to player to resolve.
