I'm not sure how you can justify that, but go ahead.Artoomis said:Whether or not you should allow it is a different deal than whether or not it is "legal" by the rules.
It seems pretty clear to me, Caliban's argument not withstanding, that it's legal.
But could you please explain to me how being treated as a natural weapon for the purposes of spells and effects is the same thing as being treated as a natural weapon for the purposes of qualifying for a feat? Last I checked, the prerequisite for a feat was not a spell or effect, but maybe that's just me.