The blank cards are SoSe's, yes. The immos are there to generate one of each quantum in order to play the cards from SoSe's, just like the Novas (which, yes, would work better upped, but I'm upping other things right now). The Crimson Dragon is there to eat up the excess
and deal damage. The Rustlers and SoR's are for the Fallen Elves (and the Fallen Druids that SoSe's seem to "consistently" generate). The Emerald Dragon is there to eat up excess
and deal damage. The thing works, believe me. It wins at least 75% of the time for me on AI3, but more valuably (again, to me), I consistently have fun doing it.