mtg dragon's maze cards Legion's Initiative [Dragon's Maze] that player adds one mana to his or her mana pool of any type that land produced. Magic The Gathering Trading Card

Brotherhood Spy Brotherhood Spy is a two-cost (one generic and one blue) creature

In order to figure out the CMC of the Colossus, you would take 2 red and add it to the 6 generic for a total of 8

But then I think about the larger picture, do I want to see Cloud Strife being gifted a sword from Nahiri the Lithomancer

The same applies to all the different Plane cards

Honorable Mentions Alongside the previously discussed commanders perfect for this ridiculous strategy, Elsha of the InfiniteElsha of the Infinite and Renari, Merchant of MarvelsRenari, Merchant of Marvels, there are still a few cards that we haven't discussed, although they're admittedly outside of the command zone (and therefore require a bit more planning)