New Spell: Leyingman's Lubrication

This spell functions similarly to Grease in most ways, but is more potent and has some additional properties. The biggest difference is that the spell can be cast upon both a creature and its equipment. A creature under the effects of this spell is able to squeeze itself — or a portion thereof — into or through any space that would normally be large enough only for a creature of up to one size category smaller.
Leyingman’s Lubrication
Conjuration (Creation)
Level: Brd 2, Sor/Wiz 2
Components: V, S, M
Casting Time: 1 standard action
Range: Close (25 ft. + 5 ft./2 levels)
Effect: One object or creature or up to three contiguous 10-ft. squares
Duration: 2 rounds/level (D)
Saving Throw: See text
Spell Resistance: No
This spell functions similarly to Grease in most ways, but is more potent and has some additional properties. The biggest difference is that the spell can be cast upon both a creature and its equipment (which can attempt a Reflex saving throw if it prefers not to be affected). A creature under the effects of this spell receives a +15 bonus on Escape Artist skill checks and is able to squeeze itself — or a portion thereof — into or through any space that would normally be large enough only for a creature of up to one size category smaller. Thus, for example, a size Medium Human under the effects of Leyingman’s Lubrication could easily slide into a space intended for a Halfling.