My first AI-test crashed because of summoning spell's "fatieguecost". AI summoned blood mages, used those to summon some more and in the end (when I scryed the province) there were 2900 Mountains of Living Sacrifices in the capital.
Well, apart from being quite powerful several forms just feels a bit mechanical and unbelievable to me.
I mean "Puny mortal do you think that beheading me serves any purpose? I'll grow two heads instead!" is perfectly ok.
But "Puny mortal do you think that dispersing me into atoms/petrifying me/slaying my soul serves any purpose? I'll just grow a new standard werewolf form instead with all the items I had before!" ... like atoms would talk.
edit: something like the oni have with a ghost form is pretty cool imo though.
Illuminated One: I made some changes and now Phoenix Guard (hurrah for imaginative names!) have second ethereal form. And immortality.
Multiple forms is bit problematic as:
1. Soul Slay doesn't kill completely. (Makes sense if second form is mount or smaller formation)
2. But if multiple forms are used to represent formations, how come AOE spells can only kill one of them at time?