Magic: The Gathering is a trading card game with many formats, each with different card pools and established deck archetypes. Many players agree that the Commander format is the single best format for creative deckbuilding and expression. And while that format makes color-heavy decks easy to run, mono-color decks still have a place, and they aren't weak or boring by any measure. Even mono-white decks can be a blast to play.
Source:https://www.cbr.com/mtg-best-mono-white-commanders-ranked/