This deck could use some mana rocks like Sol Ring or Thran Dynamo to help pump out more mana quickly. Could probably switch out Ally Encampment or another one of your lands that do not directly benefit the Eldrazi cards for them.

There is 2x Urza's Tower there to let you know. A few cards which may be of use to you are:

Rings of Brighthearth To double activated abilities, add in Basalt Monolith to get infinite colourless mana
Strionic Resonator To double any triggered abilities, Mill 40 cards with your commander!
Karn, Silver Golem to create more creatures with your non creature artifacts.
Mind's Eye Good draw in colourless too.
Lightning Greaves + Swiftfoot Boots for commander protection as well as haste.
Sword of Kaldra For more exiling! Add in the rest of the kaldra set for lols Shield of Kaldra Helm of Kaldra

Not 100% with artifact only decks but a few cards i know work well. But, I hope this helps +1 from me!

Thanks for letting me know about the 2 urza's. I didn't notice that. I was thinking of doing the Mycosynth Lattice + Darksteel Forge combo in here but need an opinion on that. Gf says mycosynth lattice might help out my opponent more than it'll help me out, and I kinda see that. The Eldrazi probably don't need that too much.

Also was wondering about adding Grim Monolith, Mana Vault, Unwinding Clock, and maybe Mana Crypt. All are pretty fine and could really help out the early game.

Now things to dump mana into besides eldrazi, Sands of Delirium, Blightsteel Colossus, maybe a Hangarback Walker? Unsure of that. Sands is a win con at least.

Card draw ideas, Howling Mine, Font of Mythos, Staff of Nin, and not really draw but tutoring, Mangara's Tome.

Thespian's Stage seems like it would be good in here. It is another colorless land and can copy Dark Depths for a turn 2 20/20 with a perfect start. Even ignoring the combo potential it is a great utility land.

I feel ashamed to say I didn't even think of Thespian stage interaction with Dark Depths....

I think that and Urborg, Tomb of Yawgmoth are probably finishers for my lands. Just need my last 11 cards.

its a nice build I actually had a look at it before but I have noticed when using my eldrazi deck that it is entirely possible to die to your mana base so something like Platinum Emperion is helpful, because of how expensive eldrazi are Urza's Incubator is a good one for making them cheaper, if your going the mill route then Mindcrank is a good card, there are one or two lands that tap for 3 or 4 mana Scorched Ruins however it means you sacrifice two lands hence why I run Crucible of Worlds, there is also ways of cheating big things into play Quicksilver Amulet

theres also Grim Monolith and Doubling Cube and Gilded Lotus to help your mana basis

Thanks for those suggestions man. A few of those were ones I was considering, especially crucible of worlds, so almost all were added. I already had Grim Monolith in the list though :P doubling cube I'm a little iffy on right now but it is a good card for this. I think I may just add the Mycosynth Lattice and either the doubling cube or Stuffy Doll? Either could be good.

You're the guy with the Kozilek deck that I commented on, right?

yeah that's me mate :)

I now use ulamog infinite gyre

Yeah stuffy doll would work instead also there is another colourless tutor available Planar Portal

I went portal over tome, that way I don't lose 5 cards if it's destroyed. Then lattice and doll to finish off the list. Now I gotta put it together. I have at least a 3rd of all of this already at least.

Nice one youl have to let me know how it runs ones its fully built mate :-)

id maybe take out gruesome slaughter as in a deck like this youl want to be attacking and it seems redundant

With this many artifacts you might wanna look into either Mirrorworks or Prototype Portal or both, it would make for a lot of fun with having copies of some of the better artifacts you have in here. Like Font of Mythos or Gilded Lotus.

+1'd for the name along XD

But I suspect that your friend's deck will be nearly identical to your own. There's not much variety between non-artifact colorless decks.

Also, switch out Grand Coliseum for something that ETB untapped? Stalking Stones isn't in the list yet.

As soon as I get to a computer I'll make some changes, but I'm expecting his to he pretty different. He builds a lot differently than I do and might go more combo than I have.

Took out Command Tower as I realized Command Tower does not work. You have to choose a color and you can't choose colorless. Still considering the other cards suggested.

Why do you use Grand Coliseum and Cathedral of War? They ETB tapped, and tap for one colorless. I guess the Cathedral is ok, because of the exalted, but I don't think it's relevant. You could use a Ghost Quarter, Glimmerpost or Haunted Fengraf instead.

Skittering Invasion is a very weak card, you don't need ramp that late. Consider adding in some cheaper ramp spells such as Everflowing Chalice, Mana Vault, Hedron Archive, or Mind Stone

Mindcrank does next to no work here. I'd replace it with another one of the mana rocks mentioned above.

Basically you just need a way to get to those giant spells faster. Your average mana cost is 5.43, which is extremely high.

Will be looking through the list again when I get home to consider some if these suggestions. Though some are already in so I'll clear those out.

what? no Coat of Arms? your eldrazi are too small man.

No love for Glimmerpost and Cloudpost?

Is Emrakul banned outright or just as a general?