Magic Fang, Superior(Spell Compendium, p. 136)
Level: Druid 4, Ranger 4,
Components: V, S,
Casting Time: 1 standard action
Duration: 1 round/level
You speak the old words of the incantation, and your hands glow with a yellow aura that flashes at the tips of your digits.
Superior magic fang gives every natural weapon you possess an enhancement bonus on attack rolls and damage rolls equal to +1 per four caster levels (maximum +5 at 20th level).