Originally Posted by
toapat
The properties of feat slots are mostly, when used for character building, only used temporarily. Out of mind and out of sight, does not mean it doesnt exist.
while retraining itself is the only thing that confirms it, nothing in Core itself actually says that feat slots lose their properties once expended, filled, or whatever the term for using one is.
DCFS does care about qualifying for a feat though. In core this is a grey area, with no confirmation asto memory of the properties of Feat slots, the PHB2 clearly shows that, yes, feat slots do retain their properties. the vague line of Embrace that says if you do not qualify for the heritor, then the spell fails, was specifically written for Poison claws. But was left general or rewritten to be more general so that, as a result, the feat does care asto whether feat slots retain their properties