User blog comment:ImperiexSeed/Supernatural Mysteries/@comment-3481504-20121201032403/@comment-166.137.119.27-20121201044145

I think that Eve was able to block Castiels access to his grace, therefore " unplugging" him from his power source which gave him all his powers. Also note that Castiel had no powers when he was blocked by eve. He could not even teleport and did not have superstrength since he was easily captured by the Jefferson starships. But notice when he was cut off from heaven, he could still teleport and still had superstrength as was shown when he pummeled dean like a rag doll. Thats because not all his power came from heaven. He still had power inherent in his grace.