Chasm Skulker is a creature card from the Magic: The Gathering M15 set, classified as an Unknown rarity (#046). Valued at approximately $0.50, it features the ability to create 1/1 blue Squid creature tokens when it receives +1/+1 counters. While not a staple in competitive play, it appeals to casual players and collectors for its unique mechanics and art. Its current market value reflects a stable interest among collectors.