@Stalker0: I had thought about 2 rounds per level, but meanwhile I think that the feat will get to complicated to be playable.
After dvvegas posting I was thinking about allowing the use of a reflex save instead of AC in situations, where you are denied your AC-bonus from Dex a number of times per day equalling your Dex-bonus+1. Maybe with Prerequisite Dodge.
Although I somehow feel, that this does not make much sense, because the result of the save will be rather lower than the AC.
After dvvegas posting I was thinking about allowing the use of a reflex save instead of AC in situations, where you are denied your AC-bonus from Dex a number of times per day equalling your Dex-bonus+1. Maybe with Prerequisite Dodge.
Although I somehow feel, that this does not make much sense, because the result of the save will be rather lower than the AC.