Deformity - Tongue

Prerequisite(s): Willing Deformity, Evil alignment
Benefit: Through protracted self-mutilation that involves frequently piercing your tongue and dipping it in acid, your tongue becomes hideous to behold but oddly sensitive to the environment. You gain the ability to sense your surroundings by taste, much as a serpent can. You gain the blindsense ability out to a range of 30 feet.
Source: Heroes of Horror