Stormtide Leviathan is a Rare card from the Magic 2015 (M15) set, valued at approximately $0.80 in the current market. Illustrated by Karl Kopinski, this creature card features a formidable 8/8 body with the ability to turn lands into islands, disrupting opponents' strategies. Its unique abilities and striking artwork make it a notable addition for collectors and players alike, reflecting its ongoing relevance in casual and competitive play.