Something I've been trying to mess around with, on my quest to find Storm in HS.

Prince Valanar can be replaced by a Beneath the Grounds, a Fal'dorei Strider, or Loatheb, if you're not up against much aggro. Pretty much anything to add damage works in this slot, if you're not struggling against aggro. This deck has a lot of cards it wants to hold on to, so it's good to have a midgame drop at times to keep yourself active on board. You could alternatively play Leeroy Jenkins here, but I'd recommend a second Shadow Sculptor or Spectral Pillager instead, I'm just not sure which is more relevant yet.