Mistform Dreamer is a creature card from the Magic: The Gathering Onslaught set, categorized as an Unknown rarity. Priced at approximately $0.75, it appeals to collectors due to its unique ability to morph into various forms, reflecting the set's theme of shapeshifting. While not a high-value card, it holds niche interest among players and collectors who appreciate its mechanics and artwork within the context of the game.