Incendiary Runes

Abjuration [fire]
Level: Artificer * 1, Sorcerer */Wizard * 1
Components: V, S
Casting Time: 1 Standard Action
Range: touch
Target: one touched object weighing no more than 10 lbs.
Duration: permanent until discharged (D)
Saving Throw: Reflex partial
Spell Resistance: yes
  This spell functions as explosive runes, except it creates a small surge of flames rather than an explosion of force. The runes automatically deal 1d6 points of fire damage to any creatures and objects in adjacent squares, and those creatures and objects catch fire unless they succeed at Reflex saves.