Magic: The Gathering features a colorful variety of formats for gameplay, from booster draft Limited to cool constructed formats like Standard, Modern, Legacy, and certainly Commander. The Commander format is a multiplayer-oriented, anything-goes format built for casual fun, and any deck can shine with the right cards. Multicolor decks tend to dominate since they have access to more cards, but even mono-colored decks can be competitive with the right strategies in mind.
Source：https://www.cbr.com/mtg-best-mono-blue-commanders-ranked/
