Grease

Conjuration (Creation)
Level: Bard 1, Sor/Wiz 1
Components: V, S
Casting Time: 1 standard action
Range: Close (25 ft. + 5 ft./2 levels)
Target or Area: One object or a 10-ft. square
Duration: 1 round/level (D)
Saving Throw: See spell text
Spell Resistance: No
Spell Points: 1

You cover a solid surface with a layer of slippery grease.

Any creature in the area when this spell is cast must make a successful Reflex save or fall. This save is repeated on your turn each round that the creature remains within the area. A creature can walk within or through the area of grease at half normal speed with a DC 10 Balance check. Failure means it can’t move that round (and must then make a Reflex save or fall), while failure by 5 or more means it falls (see the Balance skill for details).

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 an object wielded or employed by a creature receives 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 in each round that the creature attempts to pick up or use the greased item. A creature wearing greased armor or clothing gains a +10 circumstance bonus on Escape Artist checks and on grapple checks made to resist or escape a grapple or to escape a pin.