Cleansing Flames (Ability) | Pathfinder Wrath of the Righteous Wiki

At 9th level, the angelfire apostle becomes a direct conduit for the righteous power of his deity. Whenever the angelfire apostle casts a spell that belongs to the healing subschool that is a lower spell level than the highest spell he can cast, he can unleash a blast of flames as a swift action by expending one use of his channel energy ability. The flames last for 1 round and fill a contiguous area equal to one 10-foot cube per level of the healing spell cast (at least one side of the cube must be adjacent to the angelfire apostle’s space). The flames deal 1d4 points of damage per spell level. Half of the damage is fire damage, and half is raw divine power not subject to fire resistance or immunity. Any creature in the area can halve the damage with a successful Reflex saving throw against the spell’s DC. The angelfire apostle can use this ability a number of times per day equal to his Charisma modifier.