The Angel Shortage
Just how many angels are we to assume are left? 50? 100?
I also wonder how things originally worked "up there" before they started appearing in vessels..
It doesn't matter, back in season 7 Cas slaughtered hundreds, maybe thousands and yet Angels still keep popping up. The point is, there is in an infinite amount, same as demons. They will never run out, unless the writers decide they want to wipe out the Angel race.
share