[Taqwus]

When your cursor hangs over the one demon lord's "Corrupt Commander" command, the text at the bottom of the screen corresponds to the "Call God" command.
I had a Mound Fiend who couldn't even try to reanimate undead while sieged (and there were corpses present), while the one Ice Devil who's also an unholy priest was still on that order (had been assigned to do that even before the siege started, IIRC). Seemed inconsistent.