greedy good stuff praxis
Edit 1: -3 Vital Arcana -4 Trail Maker
+3 Tome of Repetition +4 Amber Acolyte
I figure the Amber Acolytes would be better since they actually pull a Sigil as help against aggro since I would prefer to trade these with aggro over the Trail Makers and the Tome's will also help against aggro as well as ramping/thinning out my deck for the fatties.
Edit 2: Switched the Heart of the Vault with a Worldbearer Behemoth
As per the comments having a warp card in the market is a little sill now that I think about it. Having the world bearer in the market means I have access to potential ramp all the time.