Tip #5: Dai Oni can reanimate dead. Specifically, Ghouls and Soulless. If you've got a crippled Dai Oni, he can spend time bringing you some spare troops to flush out the ranks of your undead leadership - especially since it's difficult to afford many of the oni.
Your Demon Priests cannot reanimate, but your Oni Generals and Hannya can if you make them your prophets. If you make them (or Dai Onis) prophets (H3), you can reanimate more of the above and longdead warriors.
Soulless require corpses, Ghouls consume population, and longdead neither.
Tip #6: Twice born will not work on Hannya or Oni, since they're demonic. As of 3.08, it is not worth casting Twice Born on a diseased Sorcerer as they will be reborn with one hitpoint. But, if you want to save a particular demon general or sorcerer... just be aware that twice born keeps magic and experience, but loses all abilities other than heroic ones, in favor of the wight mage's chassis. Generally not worth casting with yomi, though there are specific applications for undead mages, you'll just be vulnerable to banishment.
Tip #7:
Ritual of Rebirth does not work on lifeless or undead, but does work on demons (just tested). Use this on a former prophet to get multiple level three/four priests for reanimation purposes.
http://www.freewebs.com/dominions2/dom3spells.html
Edit: Also, a reborn oni loses the research penalty, and their sacred status, though they retain their priest magics.
Re: Tips for Yomi, Oni Kings
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