Another noob question - What does Unholy do?

[Sly Frog]

Okay, I've done a quick look through the manual, a search of this site, and a look at Liga's addendum. Could someone please confirm that the only thing unholy priest powers does it allow reanimation and unholy site searching (this is for standard Ulm by the way, so I'm not concerned right now with raising Pangaean carrion dragons and such). Is there anything else?

Liga's addendum makes a reference to priests with unholy giving special benefits to undead in battle, but when I look at the scripted spells, there is nothing there with respect to unholy like there is with holy (e.g. no sermon of courage, etc.).