10-ft. square
Duration: 1 round/level (D)
Saving Throw: See text
Spell Resistance: No
A grease spell covers a solid surface with a layer of slippery grease. Any creature entering the area or caught in it when the spell is cast must make a successful Reflex save or slip, skid, and fall. Those that successfully save can move at half speed across the surface. However, those that remain in the area must each make a new saving throw every round to avoid falling and to be able to move. The DM should adjust saving throws by circumstance.
The spell can also be used to create a greasy coating on an item. Material objects not in use are always affected by this spell, while objects wielded or employed by creatures receive a Reflex saving throw to avoid the effect. If the initial saving throw fails, the creature immediately drops the item. A saving throw must be made each round the creature attempts to pick up or use the greased item.