Incendiary Aura
Focus 1UncommonCurseboundEvocationFireOracleSource Advanced Player's Guide pg. 232Mystery flamesCast 
somatic,
verbalArea 10-foot emanation
Duration 1 minute
You surround yourself with a combustible aura. Each time a creature within the emanation takes fire damage, it catches on fire, taking 2d4
persistent fire damage.
Heightened (+2) Increase the persistent damage by 1d4 and the radius of the emanation by 5 feet.