An advantage of lumping characters into non-interactive power sources is that you can maintain multiple different resource management systems.
You could have Elemental Power work like Incarnum where you prepare stuff into power slots at the beginning of the day and then have a constantly refreshing rage bar to power your slotted powers. You could have Shadow Power work like a Crusader, where there was a constantly refreshing WoF system giving rise to different options on a moment by moment basis. Etc. Etc.
-Username17
D20 Iron Age: Preliminary
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