This deck got me to Masters in dominant fashion. It is basically the classic Jennev Peaks shell with the addition of Tocas in the main and Kairos in the Market. The only card I'm not 100% happy with is the equivocate in the market. Since moving to red merchant to accommodate Kairos, I rarely get it any more. But I haven't found a replacement.
Between early interaction, merchants, Tocas and Titan you have a good bridge to the mid game vs. Aggo. Yetis can nut draw you or you can die to too many tap lands and awkward removal draws. But you have so many tools that stabilizing and winning is pretty trivial.
This deck crushes unitless control as long as you are patient. They only have a handful of cards you care about. If you don't over commit, hold back on your merchants, use your counterspells judiciously, and use your removal to prevent onslaughted Royal Decree - and then *you* have inevitability. Kairos should be cast on 12 power to draw 3-7 cards and you should sandbag lands after 12 to make the most of Kaleb's ultimate.
I played almost a third of of my matches vs. unitless on the way to Masters and lost twice.
Update: made it to #1 Masters.
Update #2: The shift away from aggro post Oct balance changes has open up the door to other midrange decks. In particular the FTJ decks now inhabit a similar space, but without yetis to prey on them they can go over the top of you and your torches etc.
Update #3: The shift towards an FTJ meta seems like it is best dealt with by getting on the board earlier which puts the burn and tempo elements of the Jennev shell in a more favorable position. This makes Ramba a huge addition to the deck, bringing your costs down and letting you cast two cards much earlier than normal, plus he is always relevant in the late game since his ability is *much* better than "pay 7 - draw a card" (especially with scout lands). After getting beaten down into the 40s I'm now back into the teens with this build.