User blog comment:ImperiexSeed/Are fairies really capable of snekaing into Lucifer's Cage? If so, how?!/@comment-217.43.67.37-20120423211240/@comment-3045936-20120424203631

Its not about more powerful. And remember God revived Castiel in Swam Song. And he while he said he was revived new and improved. He wasn't stronger than the Archangels. But he said that it was nearly impossible to get even the Sam's body out of the cage. So we have see canon proof that its possible for beings to try to jail break the cage. Now we don't know how he did that. But Castiel said in family matters that it was deeping and more guarded that where Dean was in Hell. Also Death being as powerful as him went there and in less than 5 minutes and came back.

But, while not more powerful than Angels. Maybe Fairies can do more things with their magic than with Angel's can do with their own. Another theory, is that Fairies are able to avoid whatever guards the cage in Hell. Like maybe they can be invisible to those guards whatever they be that guards Lucifer's cage.

And its not about opening that cage that problem. Its going there and taking something out without opening the cage.