Some additional input:
I don't see
Reaping the Graves do that much, since cycling does not raise your storm-count (I guess you will get only 2-3 cards from that most of the time). If you want to
recycle your creatures you could try
Forever Young.
But in general I don't think that those kind of cards are even necessary in your list. Just try them out if you like and cut the cards that work the least.
Writhing necromass and
grisly survivor are good finisher as well, but I wouldn't play to many of them since they would 'block' your cycling chain if you draw to many of them.