[3.5] Magic Fang

[had3l]

When I cast Magic Fang or Greater Magic Fang on my claws, do I have to cast it twice, once for each claw?

What if I get Improved Natural Attack, does it work on both my Claws or do I have to get the feat twice, once for each claw?

[Last Laugh]

Magic fang targets a creature and enhances one of it's natural attacks. 1 casting per natural attack (the description references a fist as a viable target.)
Greater magic fang is the same way except you can give all of the targets natural weapons +1 instead of +1/4 levels.

Chain spell is a quick workaround, letting you target caster level number of natural attacks. (carcane?)

Improved natural attacks increases the damage of every claw you have (even if you have 50) but not other natural attacks (talons, bite, etc) you have to take the feat multiple times for that.

Magic Fang, Superior grants every natural attack you possess +1/4*clvl. (cannot target others) it is in the spell compendium.