I've got a player who is going to be playing a cleric (Chaotic Neutral/evil channeling) using the fire domain in the Carrion Crown. In this module there are a few undead enemies that also have fire templates (flaming skeletons, flaming flying heads and such).
Since his channeling will be both evil(Channel negative energy) and fire with the variant rules (he does half damage/healing but those that fail a save are caught on fire). How will it affect them and normal undead? Will the fire skeletons take no damage from the fire and be healed by his negative energy? I really don't like running evil characters (he's an exception since he plays evil, but good for the party, AKA i'll be good if you don't get my way)