Holdout Settlement⁣ - Oath of the Gatewatch⁣ (Common)⁣ [172]

Holdout Settlement generates colourless mana and can tap an untapped creature to produce mana of any colour. This versatility makes it a solid choice for multicolour decks, allowing for greater flexibility in casting spells. However, it relies on having untapped creatures available, which can limit its effectiveness in certain situations.