Full draft here:
http://www.cubetutor.com/humandraftpicks/7767c3f0-b150-4b7e-86b8-5a5f3c996bc3
p1p1: Ancient Tomb is good if you have a quick kill. Otherwise it's extremely painful? Basalt Monolith is unfair as well, especially if you run that merfolk soldier... My eye is drawn to Sphinx of Sealed Fates though (Consecrated Sphinx in the deck above).
Sphinx of Sealed Fates 


Creature - Sphinx
Flying
When ~ enters the battlefield, target player reveals his or her hand. Draw seven cards, then put six cards from your hand on the bottom of your library in any order.
3/6
HOLY COWBALLS! This card looks super insane. You get some information, so you know what you need to keep, and you get a godly filter trigger. Filthy filth is filthy! So naturally I pick the Sphinx.
p1p2: Stoke the Flames is a nice removal card, but goodness me, there's another ridiculous blue custom in there. Riptide Augur (Trinket Mage in the deck above) is preeeeetty good.
Riptide Augur 

Creature - Human Wizard
When ~ enters the battlefield, search your library for a noncreature, nonland card and exile it with three time counters on it. If it doesn't have suspend it gains suspend.
1/4
It's a good blocker and it casts
any spell in your deck for free? Where do I sign up!?
p1p3: Izzet Signet over stuff I guess? I just value mana rocks highly in any sort of controllish or midrangy deck, which this looks like it will be.
p1p4: Wilfdire. Woah, high there Signet's best friend! Could have gone with Tasigur or Talisman of Progress or Seeker of the Way, I guess, but come on. Wildfire!
p1p5: Vapor Snag over Intuition and Terramorphic Expanse.
p1p6: Uh... Roar of the Wurm over Ball Lightning and Nykthos, Shrine to Nyx? I got the Augur already and it's an easy splash if green fixing comes my way. (Spoiler: It won't.)
p1p7: Shaman of the Great Hunt is a great card to ambush people with and draw some cards, plus it brings some things (like Augur) out of Wildfire range!
p1p8: Cloudfin Raptor out of a weak pack. I guess I should have taken the Glorious Anthem here as a hate draft, but at least I'm picking a decent blue card to deter neighbours from slipping into blue, right?
In the rest of pack 1 I pick up Crumbling Necropolis (nice!), Avalanche Riders (nice!), Aquamoeba (SB), Kuldotha Phoenix (hmm...), Tenacity (SB), Ghoultree (won't die to burn, not while it's in my SB anyway), Keldon Champion (no idea, but I suspect SB).
p2p1: Mind Stone. Now that we've got Wildfire a mana rock has to be valued even higher, right? Higher than Capsize, Dissolve and Thawing Glaciers, right?
p2p2: Fact or Fiction over Frostburn Weird and Loxodon Warhammer.
p2p3: Cyclonic Rift over Augur of Bolas, Triskelion, Fireball and Remand. Something will wheel, right? I pick the mass one-sided instant speed board "wipe".
p2p4: Slice and Dice over Think Twice. I'll take non-one-sided removal as well, thank you!
p2p5: Dimir Laboratory over Pyreheart Wolf (not what we are doing) and Atarka, World Render (another reason to move into green? maybe I should have picked this in hindsight).
Dimir Laboratory
Land
~ enters the battlefield tapped.

: Add

or

to your mana pool.



,

, Discard a card: Search your library for a nonland card with the same converted mana cost as the discarded card, reveal it, and put it into your hand. Then shuffle your library.
Sweet, so I can turn Slice and Dice into Wildfire or that Sphinx! Or Mind Stone into Cyclonic Rift? Ok, I can get behind this!
p2p6: Precursor Golem over Magma Jet (less powerful, but sad), Kargan Dragonlord (color intensive), and Whipflare (I got bigger sweepers). Precursor is nuts if it isn't immediately dealt with. If they
Electrolyze then
Needle Drop it, more power to them!
p2p7: Tradewind Rider. Oh. My. Did you see what I just picked, like, exactly one pack before? Can you say combo wombo? I've found the name of my deck!
p2p8: Narcolepsy over... uhm... Runechanter's Pike? Narcolepsy is a fine removal spell, pretty sure it's going to make my final 40.
Rest of pack 2 gives me Capsize (what a wheel), Frostburn Weird (nice early defense), Gore-House Chainwalker (blegh), Lorescale Coatl (see, I should have picked up green fixing, did not pay attention to that...), Mardu Scout (blegh), Kargan Dragonlord, Surrakar Surrealist (1/1 cycler for

that gets a +1/+1 counter when you cast an instant or sorcery).
p3p1: Rakdos Signet over Kaervek's Torch. Could have picked up a Rootbound Crag here!
p3p2: Arc Lightning over a green-blue land (and rightly so, I think).
p3p3: Mizzium Mortars over not much. Stellar one-sided sweeper. This deck won't have problems with a board of 4-or-less-toughness creatures!
p3p4: Future Sight over Bituminous Blast, Firebolt, Akroma, Angel of Wrath (hate), and Bloodbraid Elf. All of the other cards are nice, but I love me some Future Sight. That card is so powerful!
p3p5: Sulfurous Springs over not much.
p3p6: Zealous Conscripts over Karplusan Forest. Oh no, I could have done it!
p3p7: Jhessian Thief over Guard Gomazoa? Who am I kidding, I'll take card draw over that any day!
p3p8: Izzet Boilerworks (nice pickup!) over Shard Phoenix and Yasova Dragonclaw (that green splash could have been pretty good!).
The final cards of pack 3 were Sorin's Vengeance (over Rootbound Crag, I clearly was not paying attention to the possibility of a green splash!), Seal of Fire, Xenopouncer (a 2/1 Necropouncer for 2, equip 4), a Dragon-Style Twins, a Tolsimir Wolfsblood, a Mana Tithe, and a Mulch.
The final deck is capable of some pretty nasty tricks, but I think this deck would have been even better had I not locked myself mentally into Grixis. There were some seriously good options available in Temur colors that would have suited the deck very well. The nice thing of being able to look back at the draft, is that you can reevaluate packs and see that, in hindsight, you weren't flexible enough! Nice deck, but my first two picks seem awfully strong for monocolored cards. I don't know what your experience is with playing with (or against) those cards, but my first impression of the rest of your cube is that they are pretty powerful in this cube.