Not really an AAR, about apostacy

[LDiCesare]

This is not really an AAR, but I thought some might be interested in the following story.
Specifically, the part about Ulm and Ermor.
To make it short, I've been decsribing a battle between MA Ulm and Ermor.
Ermor had low research, with thaumaturgy, enchantment and evocation. Dominion was Ermor, with Magic 1 (so poor mr).
At the start of the battle, apostacy was cast, with terrible consequences:
An Ulmish priest became apostate, and Ulm's center infantry turned to face him rather than go fight the nearest opponents.
I was amazed to see the consequences. I never saw such a simple spell cause such a havoc. I was used to howl disrupting enemy formations, but nothing like that.