Hypersmurf said:
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That's like saying "I need BAB +5 to enter this PrC, and the first level will give me one more point to make +5, therefore I satisfy the requirement."
You can't gain the effect unless you already meet the prerequisite before the effect is granted.
-Hyp.
You are both right and wrong here. You are right as far as the BAB example, but, in this case, if the effect (the feat's effect, in this case) grants a bonus to natural weapons then a monk is considered to have natural weapons for the effect (or for qualifying for the effect, same thing, really). That's practically the wording from the class description and has nothing to do with having to have the effect before you meet the prerequisite, which seems to be what you think is required, which of course would be disallowed.
This has ONLY to do with considering the prerequisite
in context. The context being a monk who gets to be considered as having a natural weapon for effects that enhance natural weapons.
This is completely different than the BAB +1 example you bring out. There is NO CONTEXT in which you get to be considered as having a BAB +1 before you actually have a BAB +1. Well, none that I know of, anyway.
I fail to be even a little bit swayed by the argument that you get to get the effects of this feat only if you somehow qualify as having a natural weapon by some other means than being a monk. Either the special attacks is considered to be with a natural weapon for teh purpose of this feat or it is not. Simple as that.
So, thw questions go like this:
Q. Does this feat grant an effect that enhances a natural weapon?
A. Yes
That's it. A monk is considered to have a natural weapon for effect granted.
If a monk is considered to have a natural weapon for the effect that is granted, then logically they must also be considered to have it for meeting the prerequisite for that effect. If not, then it has no meaning to say they are considered to have a natural attack for these spells and effects, at least for any that states the obvious "you must have a natural attack before you can have this effect."