The crown of flame is often seen among the sword archons, who invoke it before going into battle. The caster becomes a blazingly hot beacon of the powers of good, burning all innately evil creatures within 10 feet for 2d6 points of damage per round. This includes fiends, undead, evil spirits, and evil faeries, but not merely evil characters or petitioners. The crown of flame is also part of the magic used when enchanting a helm of brilliance.
The material component for the spell is the priest's holy symbol and a small circlet of something appropriate to the priest's specific power (branches for a god of nature, iron for a war god, and so on).
Notes: A planar priest spell, uncommon for good priests who traffic with archons; otherwise, very rare.