The odd market (Big Praxis 10-1 to masters)

Used this deck to fly to masters after trying a bunch of more interesting decks that just didn't do it. Basically the same list as the one I posted last month except I cut dawn walker and its synergies in favor of more ramp, a more top-end market, and a single bonus merchant. That merchant does SOME SERIOUS WORK! It's a perfect royal decree/avigraft target, as your enemy will assume there are four, it's a fifth Kairos, and, while it only grabs 2 cards from the market, those are basically the only 2 you need. I'm not sure if this deck is a better Kairos shell than the Xulta Arcanum lists floating around, as I have yet to craft them, but Arcanum is the one unfavorable matchup. I have yet to beat it, but I basically lose to nothing else!! The Kerasaur is a recent edition, meant to help with this matchup, but I'm not sure on it yet, and it's probably better to run one more choice or Praxis Arcanum, but if I have success with it against Kairos Arcanum lists, I will probably start running 4