R: 50 ft; T: point; D: [sum] Rounds
A marble-sized bead of green-gray ooze lands at a point you choose. At any time within [sum] Rounds, you can cause the sphere to detonate, filling a 20 ft space around it with a thick green mist that lasts for [dice] hours. Creatures within the sphere must immediately Test Morale or flee the area to wash.
The spell has no effect on creatures with no sense of smell, mindless creatures, or creatures that habitually live in filth.