Magic Fang

Player's Handbook v.3.5 (PH)Core (3.5)
School
Transmutation
Casting Time
1 standard action
Components
V, S, DF
Range
Touch
Target
One living creature
Duration
1 minute/level
Saving Throw
Will negates (harmless)
Spell Resistance
Yes (harmless)

Magic fang gives one natural weapon of the subject a +1 enhancement bonus on attack and damage rolls. The spell can affect a slam attack, fist, bite, or other natural weapon. (The spell does not change an unarmed strike’s damage from nonlethal damage to lethal damage).

Magic fang can be made permanent with a permanency spell.