Level: Druid 3, Ranger 3, Scalykind 3
Components: V, S, DF
Casting Time: 1 standard action
Range: Close (25 ft. + 5 ft./2 levels)
Target: One living creature
Duration: 1 hour/level
Saving Throw: Will negates (harmless)
Greater magic fang gives one natural weapon of the subject a +1 enhancement bonus on attack and damage rolls per four caster levels (maximum +5). 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.)
Alternatively, you may imbue all of the creature’s natural weapons with a +1 enhancement bonus (regardless of your caster level).
Greater magic fang can be made permanent with a permanency spell.
Source: Player’s Handbook (version 3.5), page 250.