I had a Tartarian arrive with 4 blood and 2 nature yet I noticed it suffered from old age and its penalties... thus I had it cast Rejuvenate which SHOULD have removed the old age disadvantages.... yet next turn no change.
If the undead can become old and suffer old age penalties then they should be allowed to cast rejuvenate.
Is this a bug or WAD ?
* If WAD then the Rejuventate spell should explain this spell does not work for the undead. *
Aging mechanics added to FAQ. If the Tartarian is a lifeless undead, death magic does not affect its old age, earth magic does. If it's not lifeless, Death magic is what affects old age. It's possible that the Rejuvenate spell foes not affect undead.