The upside is that blue mana has access to a huge variety of powerful targeted mill spells, which can be turned against your own library just as easily as your opponents
Its cool, and its focused on a singular theme , even if it branches off into less-supported micro-themes
Your exact mix shifts with your commander, your archetype, and your playgroups pod speed
That honor is held by the Worlds Smallest Magic: The Gathering Exclusive Collector Set pictured above - a painfully adorable, now sadly discontinued joke product that included two itsy-bitsy duel decks composed of downsized, 1.2 x 1.8 inch cards, as well as teeny weeny spindown dice
Across these four decks, you will find cards representing thirteen of the Doctors who have appeared across the shows sixty-year run, tons of companions who have joined the Doctor on their adventures, and some of the most dangerous entities who have ever threatened the universe
Some artists, like Drew Baker, take that as a challenge