The "Island" card from the Magic: The Gathering Core Set 2012 is an essential basic land that plays a crucial role in mana generation for blue spells. As an Unknown rarity card (#236), it currently holds a market value of $1.38. Basic lands like Island are often sought after for their versatility in deck building, making them a staple in both casual and competitive play. Collectors appreciate this card for its functional importance in the game.