Quote Originally Posted by Archangel
How the hell is Sasuke getting all his chakra from? Last time he had the cursed seal AND he didn't have a MS but somehow now it seems like he's the new naruto when it comes to chakra reserves
Have you noticed how Karen says "Sasuke's chakra feels different" in every fight? It's because his chakra is becoming darker and more potent.

And anyway, Kakashi said that Naruto's and Sasuke's chakra reserves were comparable, excluding the Kyuubi, way back when.