Soulquake is a sorcery card from the Magic: The Gathering set Alara Reborn, classified as an Unknown rarity. It allows players to manipulate the battlefield by forcing opponents to sacrifice creatures based on the number of colors in their mana pool. Currently valued at $0.91, the card appeals to collectors and players looking to enhance their strategies in multicolor decks. Its unique effects and potential synergies contribute to its interest in the secondary market.