The fire of justice spell induces corrosive internal energy surges in the recipient, causing 1d4+1 points of damage per level of the caster (10d4+10 points maximum). Undead suffer double damage. This damage is not affected by fire or heat resistance of any sort.
This spell can be cast only by a priest of Tyr who has already inflicted some unhealed melee, missile, or magical damage on the creature. A single hit point inflicted by the priest is sufficient, but the spell fails if this is not done.
The material components of a fire of justice spell are a coal that has once been in a fire (it need not be smoldering, or even warm) and a drop of holy water consecrated by a priest of Tyr.
Notes: Granted by Tyr, the Just God, of the Forgotten Realms setting. This spell is found only in a few exceptionally rare tomes.