Went 6-3. I didn't face the strongest opposition; among the wins was one game where opponent mana screwed hard at 2 lands, another was against a clearly bad player (he was doing things like chump-attack to push 2 points of damage). @modulo, no offense, but after trying out something similar to what you suggested I quickly made changes.
1) This isn't an 18-land deck. Yes, I have ways to use the mana, but they're not ideal ways to use the mana, and flooding out is a real problem. Much rather play 17 lands with 2 Opts. Given that the deck had weak cards and I needed to get lucky to win, I think I went all the way to 16 lands + 2 Opts. Opts aren't too filler. They can dig for lands early, and dig for bombs later. Topdecking Opt is okayish, topdecking a land can be game over.
2) Lance is important, I just have too many weak creatures. 2/3 Tolarian Scholars never scare anyone, but 4/3 first striking Tolarian Scholars can threaten something. Without Lance, I'm also stuck e.g. if my opponent has a Cloudreader Sphinx, because I just have no way to attack past it.
3) Soul Salvage is bad in this deck. With so few creatures, it's dead more often than not. Besides, if it isn't dead, I'm recurring the likes of Cabal Evangel and Tolarian Scholar a lot of the time. It's just not good enough. (However come to look at it, I somehow didn't list this card??)
4) Syncopate is not better than Wizard's Retort.
5) Chainer's Torment is bad. If the creature is answered, dealing yourself upwards of 10 points of damage is difficult to overcome. Sure, if the creature isn't unanswered you can potentially win
very big, but if it is, you lose the game.
So from the original list, better cuts would be Syncopate, Arcane Flight, Chainer's Torment, Soul Salvage, one Wizard's Retort. In retrospect the deck was weak, so I'm quite happy to reach this record.
So next pile: P1P1,
Hallar, the Firefletcher,
Triumph of Gerrard,
Shivan Fire, or
Skittering Surveyor? I'm thinking Surveyor, just so I can pick strong cards and splash, but possibly Shivan Fire is superior.