I have two lists for everyones' consideration. I've been tinkering with these the last couple of days and feel ready to present them now.
...
I've been tinkering with the idea of an "ultimate fit" for a while now. The concept has been thus:
BUG versions are the most stable, historically, because they have Brainstorm and Jace as additional sculpting tools, as well as Baleful Strix as a powerful 2-drop.
White versions gain Rhino, which is bar none the strongest 4-drop we have access to at the moment.
Red versions gain Slaughter Games, which is bar none the strongest combo/miracles hate we have access to at the moment.
Both white and blue versions have recently adopted splashing red via a pair of Deathrite Shamans and a Taiga, in order to gain access to Slaughter. The question I've had the last couple weeks is, why not go full Zoidberg and take the consistency of blue, the power of white, and the hate of red, and blend them together.
I present Ultimate Fit:
4
Veteran Explorer2
Deathrite Shaman2
Baleful Strix1
Coiling Oracle1
Nissa, Vastwood Seer1
Eternal Witness3
Siege Rhino1
Venser, Shaper Savant1
Meren of Clan Nel Toth2
Thragtusk1
Deadeye Navigator1
Consecrated Sphinx4
Cabal Therapy3
Green Sun's Zenith2
Painful Truths3
Brainstorm2
Jace, the Mind Sculptor1
Sensei's Divining Top3
Pernicious Deed1
Recurring Nightmare3
Bayou2
Tropical Island1
Underground Sea1
Savannah3
Forest2
Swamp2
Island3
Misty Rainforest3
Verdant Catacombs1
Phyrexian Tower1
Mana Confluence//sb
3
Slaughter Games1
Taiga1
Glen Elendra Archmage1
Thoughtseize2
Flusterstorm1
Vendilion Clique2
Abrupt Decay2
Carpet of Flowers2
Engineered Plague
It's taken me a while to get this list to the point where I was comfortable presenting it, because there's a lot of moving pieces and a lot of hidden packages that need to flow together correctly in the design for it to actually work out when playing it.
There are two things I am unhappy with at the moment. The first is the distribution of creatures -- the 4 spot is a bit heavy, while the 3 spot is a bit weaker. I may end up cutting a Rhino in favor of another 3-drop, but I am very undecided on that at this point. The second issue that I have with it is the lack of maindeck spot removal. Two pieces of spot removal is the fewest maindeck that I feel comfortable with, and I prefer to be in the ~4-5 range. At the end of the day, though, there are just too many things going on to be able to fit in traditional spot removal. Jace's -1 + Cabal Therapy technically counts, as does Baleful Strix -- so the deck is on somewhere around 2-3 pieces of nontraditional removal if you count them as .5 of a removal (which I personally do).
The lack of removal is compensated by the raw lifegain in this deck. It's running a -lot-. The idea is to stall, ramp, and overpower. Postboard you gain Carpets, Decays, and Flusterstorms (and probably E.Plagues if Grixis). Whether or not it can hold up to Delver adequately in this form remains to be seen -- but that's just about the only thing I'm worried about.
I'm going to be attempting to tune this up a little and give some more thoughts on it in a couple of days, but I wanted to get it out there for discussion now.