That was me, with the following C/g list, modified slightly from TheBoozeCube's:
4 Cloudpost, Glimmerpost, Vesuva
7 Forest
2 Maze of Ith
1 Thespian's Stage, Karakas, Tabernacle, Bojuka Bog, Eye of Ugin, Glacial Chasm, Wastes
4 Crop Rotation, Ancient Stirrings, Expedition Map, Warping Wail
3 Candelabra, Pithing Needle
1 Spatial Contortion
1 New Emrakul, New Ulamog, Old Kozilek, Old Emrakul, TKS
2 Ugin, All is Dust
Sideboard:
3 Krosan Grip
2 Trinisphere, Sphere of Resistance, Spatial Contortion, Surgical, Ratchet Bomb
1 Dark Depths, Silent Arbiter
I got 9th at 5-2, with losses to Eldrazi and Esper True-Name and wins against BUG Leovold, Esper Stoneblade, Eldrazi, Storm, and Topless Miracles. That last one is still a good matchup.
Match reports, abbreviated since I wasn't taking post-game notes:
Round 1: BUG Leovold
Game 1: Multiple Hymns empty my hand and put All is Dust where it feeds a Tarmogoyf. Wasteland destroys the Maze which otherwise did very well against the Goyf, and I lose in two turns.
+1 Dark Depths, +2 Surgical, -1 Needle, -1 Tabernacle, -1 Warping Wail
Game 2: Hymns hit again, but I punk him out with Marit Lage.
Game 3: He fails to find Force of Will for Ugin, and Ulamog cleans up.
Round 2: Esper Stoneblade (Ben Friedman)
Game 1: We both durdle for a while, but I durdle to Emrakul.
-1 Bojuka Bog, -1 Tabernacle, -1 Pithing Needle, +3 Krosan Grip
Game 2: Multiple Thoughtseizes slow me down and I don't topdeck a bomb before Snapcaster + Collective Brutality steals my last 2 life. Meddling Mage appears and names Krosan Grips that are stuck in my hand.
-1 Krosan Grip, +1 Spatial Contortion
Game 3: A long grind. Maze of Ith holds off a Stoneforge that would have carried a Sword of Fire and Ice. Eventually resources are worn down after he Snap-Thoughtseizes away my Emrakul. I shuffle my graveyard in, topdeck a Crop Rotation for Eye, and get Emrakul again.
Round 3: Eldrazi
Game 1: I get run over, having not kept a hand that could have done anything against that deck before turn 5.
-2 All is Dust, -2 Ugin, -1 Bojuka Bog, -1 Spatial Contortion
+2 Ratchet Bomb, +3 Krosan Grip, +1 Silent Arbiter, +1 Dark Depths
Game 2: I mulligan to a 5 that contains Land, Maze, Candelabra. After some deft maneuvering involving copying Crystal Vein with Vesuva, Maze + Silent Arbiter staves off the horde long enough to land Ulamog and then Emrakul. Ratchet Bomb gets to clean up two Chalices, two Scions, and an Endless One on 7.
Game 3: I play tricks with Glacial Chasm and Thespian's Stage to wind up at 2 life with a Stage/Chasm and topdeck Expedition Map for Dark Depths.
Round 4: Storm
Game 1: I am on the draw and opt to play T1 Cloudpost, T2 Vesuva instead of T2 Glimmerpost which would have put me out of range of the T3 Tendrils kill.
-1 Spatial Contortion, -2 Maze of Ith, -1 Ulamog, -3 Pithing Needle, -2 All is Dust
+2 Ratchet Bomb, +2 Sphere of Resistance, +2 Trinisphere, +2 Surgical, +1 Dark Depths
Game 2: He keeps a no-land Probe hand but finds no lands with it. I set up Stage/Depths and he can't combo off on his last turn.
Game 3: He Duresses me on T1 and takes a Map because my post-mulligan hand doesn't have much action. Fortunately I topdeck Sphere of Resistance, TKS, 2x Surgical, and Bojuka Bog which are enough.
Round 5: Eldrazi *** Camera Match ***
Available here:
https://www.twitch.tv/videos/149453626
4:50:55 - Opening hand drawn 2x Cloudpost, 2x Forest, 2x Crop Rotation, Spatial Contortion?
4:52:50 - I have a choice between holding up Crop Rotation or going whole-hog on Cloudposts. I go with the former to avoid a blowout. Since my opponent fails to draw land for a while I end up natural-ramping anyway.
4:53:52 - This Needle is on Wasteland, since the plan is to Rotate for Eye and cast Emrakul and every nonbasic is necessary.
4:56:10 - Sideboarding, same as before:
-2 All is Dust, -2 Ugin, -1 Bojuka Bog, -1 Spatial Contortion
+2 Ratchet Bomb, +3 Krosan Grip, +1 Silent Arbiter, +1 Dark Depths
4:56:20 - The decklist sheet. Being a math graduate student, I earn money by teaching math classes - in this case, Calculus II. I printed my decklist on the back of an unused worksheet I assigned to my class because I have hundreds of those things and there's no sense in not reusing perfectly useful paper with one side still blank.
4:58:30 - I'm contemplating a one-Forest hand that has Map, Candelabra, Ratchet Bomb but no way to stop a large creature. I decide that the payoff of drawing a land is not good enough and mulligan.
4:59:15 - This hand has 3 Vesuva as the only lands, and still no way to deal with a large creature. I'm basically mulliganing to Maze of Ith here, besides which copying his lands with Vesuva is dicey as I don't want to copy Tombs or Cities or Temples.
5:00:04 - I scry away Crop Rotation because I expect Chalice and need to draw Cloudposts.
5:00:20 - The tank here is to decide between holding up Rotation as a response or to deploy the Map. Since I expect needing to get Glacial Chasm at some point, I play the map since Chasm shouldn't be played on one land and also should not be gotten with Crop Rotation if at all possible.
5:00:45 - "I think 12 Post has it, completely" while the Chalice is coming down. If I had been able to hear this at the time I would have laughed out loud.
5:01:35 - Now that a Wasteland and a Chalice have appeared, the original plan of Map -> Chasm is suicidal. In fact Map -> almost any nonbasic is bad since the land just gets blown up because no Pithing Needle will be in play. However, Map -> Thespian's Stage still puts me at +1 mana for a while since my opponent will not proactively Wasteland it (because I'll just make it into a Forest), and if I draw a desired nonbasic (e.g. Maze) then I can copy that land with Stage in response to a Wasteland. And if, somehow, he taps the Wasteland and I have Dark Depths then I just win on the spot. The +1 mana could become important in order to Grip + 1cc spell in the same turn, though the game did not develop that way, and I might not be able to afford the 2 mana for Map at any other time. Map -> Stage is absolutely the correct play here. The long tank here is me working through this logic.
5:03:26 - Unfortunately that plan gets smashed by the arrival of Reality Smasher. If I don't chump with an Eldrazi Scion, then a topdecked Grip on Chalice followed by Crop Rotation -> Maze no longer saves me, and that is the only line that buys a turn through an active Wasteland (if I don't chump, I go to 6 and the non-Smasher creatures total 6 power). The chump must happen at the expense of the Stage. You can see how at the time I already had forgotten about the Thorn...
5:04:00 - Yes I know (now), the Crop Rotation can't actually be cast here because of the Thorn. My opponent and I both missed this fact, though it would not have changed the direction of the game.
5:05:54 - See above. I did get a warning for these.
5:09:50 - This hand has Wastes+T1 Candelabra followed by T2 Maze, has Ratchet Bomb/Krosan Grip to answer Chalices, and Stirrings to find cards. Yes, it has no green sources, but I can lock two creatures out of combat to buy time to find lands, and I can still answer Chalice without green because of the Ratchet Bomb. So I decide to keep. I think it's slightly more correct to mulligan, but that is easy to say now that the course of the game is known. If his hand had been TKS + Smasher + Chalice and nothing else then this hand wins pretty much every time, and that's a hand he would definitely keep given how game 2 played out. I would not keep this hand against any deck other than Eldrazi.
5:10:48 - Stream stress is for wimps.
5:11:02 - See, Cloudpost off the top. Things are already coming together.
5:13:18 - Nuts. The game is effectively over at this point.
5:13:37 - Not Glacial Chasm. Therefore scoop.
Round 6: Esper True-Name
Game 1: I resolve an Ugin that sweeps away a Deathrite and a Stoneforge, then a TNN. A second TNN follows and picks up a Jitte and a Batterskull. I have a Tabernacle in play and incorrectly search for Ulamog to take out the equipment. I get hit down to 2 and then drained by Collective Brutality.
-1 Bojuka Bog, -1 Tabernacle, -1 Warping Wail, +2 Krosan Grip, +1 Spatial Contortion
I am expecting Meddling Mages, so I bring in another Spatial Contortion.
Game 2: I have to play Chasm tricks against 2x Deathrite in order to stay alive, but he has triple Force of Will for the relevant spells. Bad luck here, but a better plan for True-Name Nemesis is in order.
Round 7: Topless Miracles
Game 1: I ramp hard and dump some Eldrazi after he burns a Force of Will on a Warping Wail that would have countered Entreat the Angels.
-1 Pithing Needle, -1 Bojuka Bog, -1 Warping Wail, +3 Krosan Grip
Game 2: I mulligan to 4 and despite having access to 40 mana through Posts and Candelabras do not topdeck a bomb before dying to angel tokens.
Game 3: He fetches a lot of basics so I play conservatively in anticipation of Back to Basics. I have a hand full of threats though, and a Map for a third Cloudpost allows the Eldrazi parade to crush him.
Observations
1) Dark Depths definitely belongs in the sideboard.
2) Warping Wail gets sided out a lot, though I faced less combo than I expected.
3) A third Maze of Ith and an additional Forest would nice if a reasonable cut can be made.
4) Candelabra is insane.
5) A lot of opening hands are borderline. This could be just a fluke, but an additional filtering effect could go a long way. I'm thinking 1 Oath of Nissa or 1 Sylvan Library.
Changes
-1 Warping Wail, +1 Maze of Ith
Thanks for reading. I'll answer any questions.