Karn's Sylex is a Mythic rarity card from the Promo Pack: Dominaria United set of Magic: The Gathering, designated as card #234. Currently valued at $2.68, it represents a strategic artifact that can significantly impact gameplay. Collectors and players alike may find its value appealing, given its rarity and role within the broader context of the set. Sales data indicates steady interest, reflecting its relevance in both competitive play and collection.