Oil of slipperiness

Oil of slipperiness, also known as salve of slipperiness, was a magical unguent that rendered a creature extremely difficult to restrain.

Description
The oil was a heavy, black, and sticky, but flowed surprisingly quickly out of its container.

One dose of oil of slipperiness was sufficient to cover the entire body and equipment of a human-sized creature. More doses were required if intended to be applied over a larger individual. Applying the oil was a process that took 10 minutes.

Powers
One application of the oil granted a creature with the effects of a freedom of movement spell for 8 hours. Alternatively, pouring the oil on the ground covered an area equivalent to a square on a side, giving it the effects of a grease spell for 8 hours.

An annointed creature or area could be cleaned of oil of slipperiness by wiping or rinsing with alcohol or wine.

Appearances

 * Adventures
 * Waterdeep: Dungeon of the Mad Mage