Fevered Convulsions is a card from the Magic: The Gathering Tempest set, classified as an Unknown rarity. With a current market value of $0.67, it appeals to collectors seeking lesser-known cards from early expansions. The card's unique mechanics and thematic elements contribute to its niche appeal, making it a potentially interesting addition to both casual and competitive decks. Sales data shows steady interest among players looking to explore the set's diverse offerings.