User blog comment:Jyggalag Daedric Prince of Order/Season 9 A Bust?/@comment-3519940-20130528025257/@comment-1509826-20130528203334

I said it wasn't the same spell, you have a point with Anna. However its confirmed in the series Angels gain power from heaven supplying them power, without the connection there power decreses. Except Seraphs and Archangels who stay the same without there power.