I was wondering why it wasn't implemented for all armies of Herecy? It seems to me that the army of fists has like 4-5 skills more than the army of shadows... Btw, do rangers go to the army of the fists or they have their special army?
Heh, forgot to produce an idea: a skill for the Herecy called purge that would be able to dispel spells of the enemies... Nothing to fancy, just sanc, harden, haste, fly and of course, protective shield...
Seriously, something like that should be added since determination and outrage fail to strip even simple spells like armor...
One more thing: make purified items like weapons unusable by anyone but Heretics... We don't want righteous fury being wielded by a takhisis thief?