Babau Slime

You press the viscous ball of demon sweat between your fingers and speak the eldritch words. Your flesh and equipment begin to weep hot red tears that quickly form a coating over your body.

(Planar Handbook)  
Originally posted on D&D tools

Transmutation

Level: Druid 3, Sorcerer, Wizard 3,
Components: V, S, M, DF,
Casting Time: 1 standard action
Range: Touch
Target: Creature touched
Duration: 1 min./level
Saving Throw: Fortitude negates (harmless) and Reflex negates; see text
Spell Resistance: Yes (harmless)

This demon-inspired transmutation causes the subject to secrete a slimy red layer of jelly that coats her skin, armor, and equipment.

While the slime does not harm the subject or her equipment, any other weapon that touches it takes 1d8 points of acid damage from the corrosive goo, and the weapon’s hardness does not reduce this damage.

A magic weapon may attempt a Reflex save to avoid taking this damage.

A creature who strikes a slime-protected subject with an unarmed attack, unarmed strike, touch spell, or natural weapon takes this damage as well but can negate the damage with a Reflex save.

Material Component: A drop of babau slime.