Cloned from Millennium Cube
UPDATE!
Now that the Top Cards feature has been fixed on Cube Cobra, I'm going to go ahead and update the Millennium Cube with the best cards from the last two years. In addition, I'm going to be increasing the Land count a bit, and decreasing the number of other cards; since that's the piece of feedback I most regularly received. It'll still be less Lands than a lot of people will like. But, baby steps.

Origin

So, this Cube started out with the question: What would happen if Wizards stopped producing Magic?

Thinking about it, I had to imagine, that -even if the meta game sort of stopped progressing- people would continue to play Constructed. But, that Limited would become harder and harder to play, as booster packs became more and more scarce.

Into that void, perhaps Cube would grow to become the premiere Limited format, with players continuing to refine their cubes, or swap out cards as things become stale.

At some point, would there be a quintessential cube? One that represented Magic in its totality. If so, what would that look like? This is my stab at that: The Millennium Cube.

I chose the name Millennium Cube because I envision it containing 1,000 cards (and "Millenium Cube" sounds dramatic). 147 of each of the five colors. 115 Gold cards. 100 Colorless cards. And 50 Lands. My hope is that 1,000 cards is enough depth to include all the greats. But, also to include a lot of the quintessential cards which might not be great, but which are so iconic to the game that they earn an honorary place.

How did I choose the cards to include?
For each color, I looked at Cube Cobra's Top Card lists for that color, and just pulled the top cards. When looking at the lists I used the "Cubes" column to sort, rather than "ELO." Partially because I can't quite get my head around ELO, but also I'm hoping this creates a "Greatest Hits" vibe.

For the gold cards, I did the Top 8 cards for each pair/guild. The Top 4 cards for each 3-color combination. And the Top 4 five-color cards, just for good measure.

The Lands, too?
Actually, for them I'm currently doing something different. Just using the Top 50 lands ended up feeling sort of unbalanced; so I've standardized them a bit. Currently, it's the 10 Fetchlands, plus the Pain, Tango and Triomes since they are all fetchable. I've also included all the Man-lands, just because most of them seemed to appear on the original Top 50 list. There's also 10 other random, non-dual lands, to mix it up.

I suspect that in future iterations I'll want to add more lands, but -frankly- I'm a bit of Timmy that thinks "bah, lands are boring!"

No Power 9? No Original Dual Lands?
Originally, I'd included them. But I ended up removing them because, ultimately, I wanted this to be a Cube I could build in real life. And, they are just too expensive to justify including. "But, just use proxies!" I could, and if I find someone who makes proxies I'm happy with, I might consider it. But, for now, I'd rather limit it to actual cards.

Your current card numbers don't match your original breakdown.
Yeah, I know. Just a side effect of tinkering with it. I kept pulling things and adding things and shifting things around, and next think I knew, they were all off by a few. At this point, I'll probably just leave it as is, because it at least adds up to 1000 cards. I plan on updating the Cube around the next time standard rotates. I'll try to fix the numbers then.

So, do you have all the included cards?
Still working on it. Right now, I've got about 980 of the 1,005 cards. But, that's enough to at least start playing with it, and testing it.

This is very much a work in progress, but feel free to chime in.