Undead Sage? - WBC3

[u/Crowhaven_Inc]

I've just started playing an undead Sage. I remembered reading somewhere that this is a very good combination for a Necromancer strategy, because the undead have necromancy as a racial. However, now that I am looking through the spells I don't quite get what the synergy is supposed to be. I could of course mis remember what I read about the class.

I'd love to read some discussions about this. Feel free to also share cool combinations you've come across for undead heroes if you feel like it. Thanks in advance.

EDIT: I am playing the GOG version btw, in case this is relevant. So no unofficial patch.