Arouse hunger was a good surprise spell for one turn to take out as many eagle kings as possible, after that of course you'd bump your PD a bit.
Of course all that was a specific situation tactic, but I still think undead are a problem or some demon units. Low level summons are very cheap in CBM and you have a limited amount of eagle kings.
Ghouls have a fatigue attack, like axe of hate (which is seriously underrated).
But I still do think that was a brilliant tactic.
