This is my first attempt at making a cube. Posting it here for tracking and opinions.

Thought process definitely focused on cycles at first, but I tried to get away from some of that as I built it, tough many cycles definitely remain.

I used excess cards I had that either I've never made a EDH deck to house, or I just have duplicates of from years of collecting. I started with cycles (all the Guild Leaders and maze runners, the entirety of Avacyn's sisterhood and Griselbrand, all the Myojin and Spirit Dragons, all the chancellors, etc.) and then went for tribal themes (Humans and Angels, Elves and Beasts, Merfolk and Faeries, Zombies and Vampires, Goblins and Dragons) with some heavier than others and some cross colorization, especially with the humans.

I also wanted to include all the miracles, and all the adventures (but for one which makes a food token, which I removed as nothing else uses or makes them), the latter because I felt it gave more flexibility since they are both creatures and instant/sorcery, which is also why there are three bestow creatures in each color as those double as auras.

Edit: I have removed all the Myojin, Chancellors, and Souls of various planes.

Edit 11/23: I have revised the adventures so there are not as many across the cube and most of the adventures that are closer to draft chaff have been removed, while adding the 10 rare multi-color adventures from WoE.