I’m wondering what has been your experience of holy aura? Is it totally OP? At first glance, it seems so to me.
Many later combats in ToT involve abominations and undead, and having one (or two) instances going on at once might really deter from the drama.
I try to use the RAW with minimal houserules, but here, I’m tempted of severely nerfing this power. (Maybe by reducing its effect to anyone in Close contact with the caster.)