D&Dtools1

A sticky layer of black liquid coats your target.
The resinous tar spell makes a solid surface sticky.
Movement costs across the area are doubled.
Any prone creature in the area must succeed on a DC 10 Strength check to stand up.
The spell can also be used to create a sticky coating on an item.
Items not in use or in a creature's possession are always affected by this spell.
An object wielded or held by a creature receives a Reflex saving throw to avoid the effect.
A creature holding an affected item must use a full-round action to let go of the item, drop it, put it away, pick it up from the ground, or ready it for use.
A creature wielding an affected item gains a +5 circumstance bonus on opposed checks to avoid being disarmed.
A creature wearing armor or clothing affected by this spell takes a -5 penalty on Escape Artist checks and on grapple checks made to resist or escape a grapple or to escape a pin.
Resinous tar counters and dispels grease (and vice versa).
Material Component: A drop of honey, molasses, or pine resin.