Enhanced Olfaction

This spell dramatically increases the caster's sensitivity to odors, giving him a sense of smell equal to that of the keenest bloodhound. This gives the caster a +2 bonus on surprise checks. In addition, while the spell is in effect the caster can track by scent (adjudicated by the DM).

However, the caster's sensitivity gives him a -2 penalty to any saving throw against an olfactory attack, such as the stench of a ghast, a troglodyte, a giant skunk, a stinking cloud spell, and so on.

The material component is a piece of dried skunk cabbage.

Notes: Rare spell. (Updated from Polyhedron Newszine.)