Oil Spray

Fountains of flammable oil spout up from the ground, showering everything in vicinity with sticky, black liquid.

When you cast this spell over rough earth or sand, fountains of flammable oil spout up from the ground, covering everything within a 20–foot radius. Creatures in the area must make a Reflex save or be covered in oil. The spell effectively causes the area to suffer the effects of a grease spell. The oil itself isn't particularly dangerous unless ignited. Burning oil inflicts 2d8 points of fire damage + 2 points per caster level its first round, and 1d8 points of fire damage + 1 point per caster level in the second round. The oil burns off by the third round, but creatures that were covered in oil still burn, as they have caught fire, suffering 1d6 points of fire damage per round until the fire is put out. If the oil isn't ignited, it will remain until removed by no less than 30 minutes of scrubbing or washing. Thus, any creature that is covered with the oil is at risk of being ignited by as little as a spark. A creature that enters the oil–covered area after the initial gush is not at risk of being ignited because it was not doused by the oil, but it still takes damage if it enters the area when it is aflame.