Simic Guildgate is a land card from the Ravnica Allegiance set of Magic: The Gathering, designated as card #257 with an Unknown rarity. As a guildgate, it serves as a dual land that provides both green and blue mana, fitting seamlessly into decks that require these colors. Currently valued at $0.24, it remains an accessible option for collectors and players looking to enhance their mana base in various formats.