Curated Unstable cube.

• (in principle) 4 of each common, 2 of each uncommon, and 1 of each rare and mythic.

• Contraptions are instead 2 of each common and uncommon, and 1 of each rare and mythic.

• Removed "not-un" commons, any cards that don't work/aren't fun, and a few not great cards for color balance reasons.

• Perfectly color balanced at common and uncommon.

• Uncommons with multiple versions appear with three different versions, rares with multiple versions appear with only one version.

• Includes 3 each of Killbots and Secret Bases.