My Un-cube is a mix of cards from the Magic un-sets. However, it is heavily based in Unstable as this is the more complete draft format.
While the archetypes are not nearly as even as in other cube environments, due to unstable giving more support to the allied colors pairings, the draft experience is still very strong.
Allied color pairingsSo many of the White and Blue creatures are artifact creatures in addition to their normal types. Making this deck very synergistic.
DimirPhoebe, Head of S.N.E.A.K.
Go deep on evasion (flyers, menace etc.), and pick up removal where you can and anything that incidentally assembles contraptions and is on game plan. Spell Suck, Finders, Keepers, this is where we want to be.
This deck tends to be a good stuff deck, and can be very effective.
The deck is semi-control as you have access to the best removal in the cube. Don't ignore cards like Wrench-Rigger and Work a Double. They can work for you too. Play big threats like The Big Idea and Grusilda, Monster Masher, then you can dominate the late game.
If you want to play this deck, just draft goblin riggers like Steamflogger Boss and Wrench-Rigger. This deck can easily play 7-10 contraptions in a single game, and that is your main game plan. Contraptions like Hard Hat Area and Widget Contraption are worth looking out for.
SelesnyaThis is the best version of the Augment deck. You get access to both Teacher's Pet and Clever Combo, which can take your deck from decent to really consistent.
Dr. Julius Jumblemorph
Acornelia, Fashionable Filcher and Earl of Squirrel
SimicPippa, Duchess of Dice and As Luck would have it
IzzetAlexander Clamilton is not much of a guidepost, but this is a contraption color pair.
Grab the red "assemble a contraption cards" and then grab blue's artifact synergies pieces as well. The upside is that you get Blue's removal, the downside is that Unstable did not really support strong Izzet decks, so you are fighting a little bit of an uphill battle. Still Blue's enchantment based removal is some of the best, and red's burn is not condition removal the way black's is, so you can be very effective on this axis.
This is another deck that was not heavily supported in Unstable draft, but many of white's creatures are "Riggers" which can synergize well with Steamflogger Boss. Similar to Izzet you are looking to play white's artifact synergies with Red's Contraptions (which are artifacts).
Stet, Draconic Proofreader is your multicolored card, but honestly, he is just a good stuff dragon. Don't let that hurt your feelings though, the 4/4 body plus flying is good enough that other red decks will just steal him, so grab him if you can. Only you can take full advantage of him.
The reason why I build this cube is to have Fun and I hope that you find this cube some entertaining.
If you have questions abaut the mechanics of the cube or silver bordered cards in general, check out this article by Mark Rosewater where he ansers some frequently asked questions (FAQ).
FAQ article by Mark Rosewater