Does Improved Natural Attack (Claw) apply to all my claw attacks?

Question

I have a totemist who took Improved Natural Attack to boost the damage of the Claws from the Soulmeld Sphinx claws, and then decided to shape a different soulmeld that also gave claw attacks. (In this case, Girralon Arms bound to my Totem chakra.) Does Improved Natural Attack apply?

The way I read the feat, it applies to a subset of natural attacks, such as "claw," which both soulmelds impart when bound to the Totem Chakra. But I would rather have clarification to be sure. Does it apply to all claw attacks or just one source?

Answer 1

Yes.

Feats

Prerequisites

Some feats have prerequisites. Your character must have the indicated ability score, class feature, feat, skill, base attack bonus, or other quality designated in order to select or use that feat. A character can gain a feat at the same level at which he or she gains the prerequisite.

From the System Reference Document. The same language can be found in the Player’s Handbook.

Emphasis mine: you must meet a feat’s prerequisites to choose it, and in order to use it, and beyond that they mean nothing. You don’t lose the feat if you no longer meet its prerequisites, it just goes dormant.

As for Improved Natural Attack itself...

Choose one of the creature’s natural attack forms. The damage for this natural weapon increases by one step[...]

Also from the SRD, though this feat is found in the Monster Manual.

The phrase “natural attack forms” is used, not “natural attacks” or “natural weapons.” It applies to all natural weapons of that form equally.