Sand Mill

You might consider using leyline of singularity and karakas.

EXTERMINATUS EXTREMIS:

Forgive SOULOFMIRRODIN for disregarding the leyline. I've been posting everywhere about the wonders of that card, so he's stalking me a bit to tell all millers with creatureheavy decks to avoid it.

I'll argument for why the leyline can fit into a creatureheavy deck:

First of all, the leyline can be built around, cutting some critters and including others, this will also make a deck less vulnerable against surgical/extirpate.

Second, in any matchup with creatures, the leyline will allow both players to have only one of each creature, and if your creatures are the biggest, the leyline will work to your advantage.

Third, instead of putting it in play at the beginning of the game, keep it on the hand, play one of each creatures only, then at the hight of the game play it, making sure your opponent suffers for having multiple creatures in play.

That's the initial way to play it! Now I will move on to why it fits your design much more than others...

CRYPTOPLASM:
These fun creatures will now work as removal, as you copy your opponents best legendary creature. Pretty fun stuff.

KOR SKYFISHER:
If you can, aim at putting the leyline in play from your oppeninghand, and you can then speed up the skyfisher, and use the leyline as sweep later. Or lategame you can always remove the leyline with the kor if you can see an advantage in having multiples.

SOULOFMIRRODIN:
Hope you can see the logic in this case :) And I don't mind you following my posts, as the best way to promote any card is a good old fashioned argument about it's pro's and cons!

SOULOFMIRRODIN:
Well if you aren't stalking me, then you are just as stubborn and fireheaded as I am.
I am stalking millingdecks too, and like to spread any innovations I can think of.
Debate on any cards can only be good for all of us, and sometimes you or I will lose the argument, but I hope no harm is done at that.

If we din't have our differences, neither of us would have put much thought into leyline combined with cryptoplasm, phyrexian metamorph or kor skyfisher! And at least two other people have decided to base a deck around the leyline instead of the mill, which would never have happened either if it wasn't for you and me, warring over the place.

I expect you to do the same whenever I get other ideas, and in the case that I get a truly stupid idea, I hope you will pawn me sufficiently enough so that I withdraw that idea.

SOULOFMIRRODIN:
"Hunted" creatures are nice with torpor orb, and in some cases the leyline too.
Torpor orb also stops a few decks in modern so having both these might be an idea.

Leyline of singularity constantly surpises me, since we've been talking so much about it.
Remember the singularity is better than void against dredge? Turns out it had another improvement over void! You can use surgical extraction alongside it. Which was not possible with the void. I'm curently trying to restructure my whole conceptuality on the uses of singularity versus the void. Karakas/singularity has been my first ever successfull response to sneakshow, and I'm trying to bring reanimate in under the same scope (Originally I use 4 void and 1 grafdigger's cage) by using surgical and extirpate to a higher degree.

Since I'm not sure I understood the idea fully, I added some suggestions. Unless it's just a prototype to be feed ideas, you will need to explain how to play it :) I've written two paths to follow!