I just rewatched the Season 8 finale a few days ago, and it got me craving a particular type of fic...

Basically I would like to see a fic where, having fallen from Heaven due to Metatron's machinations, Cas is now completely human and powerless. Hence, when he first meets Sam and Dean again, they expect him to be pretty useless as far as hunting is concerned, nothing more than a burden. Cas, being generally confused and clueless as he is (even more so now that he's human), does nothing to dispel this notion. Then after some time, when Sam and Dean get into a fight with a demon/monster/random supernatural hoodoo, Cas proves to be surprisingly and effortlessly efficient in human forms of combat (can be hand-to-hand, shooting, whatever). This takes Sam and Dean completely by surprise, as they never imagined that a human Cas would be useful in battle.

If anyone can recommend any such fics to me, that would be really nice.

Thanks in advance!! :)