Empirate
First Post
Sorry Chum, it's been written in stone. Do you qualify for the class? No? Then you lose all class features. Could you take a new level in it RIGHT NOW if you had the xp? No? Then you lose all class features. Simply having Power Attack in the past does not mean you currently "have" it just like being good in the past doesn't mean you currently have a good alignment.
Apart from the Paladin example, which just isn't pertinent, let's take a look: if I have the Power Attack feat and get Str damaged below 13, do I still have PA? Sure, it says so right on my character sheet!
SRD said: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.
A character can’t use a feat if he or she has lost a prerequisite.
You don't lose a feat just because you don't fulfill a prerequisite anymore. You just can't use it for as long as that prerequisite remains unfulfilled. Nowhere in any PrC's requirements does it say "must be able to use all the feats that are listed above RIGHT NOW".
If I'm a Blackguard and get Str damaged by a Shadow, so now I'm Str 12 until I get a Lesser Restoration. I can't use PA for the time being, but I sure as hell can use my Blackguard class features (spells etc.)! What's more, if I happen to gain enough XP to level up, I can take another Blackguard level just fine RIGHT NOW, because I do have the PA, Cleave, and Improved Sunder, even though I can't use them until that cleric gets his butt over here.
Heck, he doesn't even have to cast Lesser Restoration, a simple Bull's Strength would be just fine. Or maybe he can lend me those Gauntlets of Ogre Strength of his, and I'll be great.
[funnily, by RAW I couldn't take the Great Cleave feat RIGHT NOW even if my levelup permits me to choose another feat. But no sane DM would disallow it, I wager]
Another question to you: do you really want to introduce even more bookkeeping into effects that temporarily change ability scores?