User blog comment:ImperiexSeed/Are fairies really capable of snekaing into Lucifer's Cage? If so, how?!/@comment-1509826-20120103193956/@comment-3045936-20120103222656

Maybe Fairies can make deals that more under the more unrealistic approach. I mean Rudy told Sam in the first episode of season 4 that no demon can swing that. By swing that is referred to taking a human soul from hell and putting back into its body and restored. Ruby said that is was Cosmic. Now maybe Fairies can do something like this. As a deal is magically blending reality to a ever limited degree to achieve a desired affect. Now maybe Fairies can make deals that are magically superior to demons and maybe rivaling angels. Or maybe they can just do more things than angels, maybe not more powerful but more.

As fairies are one of the supernatural races that aren't so well defined. At least on how weak or strong they are when compared to the others. For Lucifer, nor Eve made them. And I doubt God made them.