Created as a 'best of' Cube for the three Ravnica blocks.

Design principles:

• 360 cards exactly; serves a full 8 person draft.
• Strict color and guild parity. That means 3-color cards and nephilim are out.
• Guild cycles with a dedicated mechanic are all-or-nothing. In practice, I've only kept mana fixing, two sets of split cards, and hybrid guildmages.
• Cycles of guild legends and monocolor cycles have been picked from (e.g. Experiment Kraj and Hunted Dragon).
• I've tried a rough match of the average mana curve of each color in the original sets.
• No planeswalkers. There aren't enough to balance the colors, and I'm fine not having them.
• At least one instance of each guild mechanic (technically two for convoke, which wasn't a problem).
• Where possible, choose cards that have cross-guild and cross-mechanic synergy.

Known Biases:

• I like split cards
• Ravnica sets are low on artifacts, and many of them suck. Executive decision to limit artifacts to 10x Signet.
• Relatively high amount of enchantments, fitting the original Ravnica enchantment subtheme.
• As a consequence, I've only included artifact removal that also hits enchantments. Mortify is in; Putrify is out.
• Support for gates to to not be worth it. Gates still in as cheap mana fixing.
• Likewise, support for a milling strategy deemed not worth it, as it's all or nothing and doesn't synergise with anything other than Dredge. To be determined how badly this hurts Dimir.
• I have the most nostalgia for original Ravnica, which gave some cards the benefit of the doubt.

Statistics:

• Actually a decent spread over the different sets. Highest is OG Ravnica at 77, lowest is Dragons Maze at 32.
• Each color has cards from all sets, with the exception of Dragon's Maze (which was mostly gold and mostly bad).