Torch: This is helps a ton vs aggro and scream
Eilyns's Favor: wanna get your combo discarded or destroyed? didn't think so. Helps thinning
Equivocate: Our only "stopper" spell, can stop the topdecks if the board is empty. Too good to pass up though
Glimpse the Possibilities: This is the deck
Strategize: We often have duplicates of combo pieces, a no brainer
Aurelian Merchant: Getting our combo is a must, so a "white market" is preferred. Remember that Larai can get Forge on 5 guaranteed.
Calderan Cradle: Alternate wincon with mild onslaught and equivocate synergies. Feel free to replace with another Favor
Display of Instinct: Great card: always castable, can kill sites, prevent combo disruption, replay Merchant and Soothsayer
Hailstorm: When you need it, you need it
Larai, the Appraiser: Often saved for turn 5 to fetch forge. Clocktower is ususally preffered to greatsword, unless you're really ahead. Fetch Sanctum on 3 unless you have really good case for cradle and/or you already have 2 Sanctum in play.
Scorpion Wasp: kill big stuff with aegis (*cough* nerf pls *cough*) without disrupting the combo. Considering more, testing in progress
Talir's Sanctum: You need this in play to Glimpse unless you have extra copies of Glimpse in hand. Better to have than a second Forge from the market
Wisdom of the Elders: Having draw is nice to maintain your control game early on, and can push power off the top in a pinch. Considering switching to a cheaper draw spell, but it's treated me well so far.
Ancient Clocktower: This is a big roleplayer when your life total is in danger. You can go off without it, but get it online as soon as you can squeeze it in
Jawbone Greatsword: Amazing vs control and the easiest way to trigger Soothsayer's Onslaught b/c it emulates a charge unit and survives board clears. Also fetchable with Larai, has been really good
Lethrai Soothsayer: 21 dmg to finish the game if you're going to deck yourself. If they're gaining life, save a Display or a Standard to play her twice.
Workshop Forge: You only need 1, you have 8 other ways to get one.
Market:
Praxis Banner: running low lands for combo, this helps prevent power screw.
Excavate: extra Glimpse.