Name: Tendrils of Corruption Cost: 3B CMC: 4 Color: B CID: B Type: Instant Rules Text: Tendrils of Corruption deals X damage to target creature and you gain X life, where X is the number of Swamps you control. Set/Rarity: Time Spiral common, Magic 2010 common, Duel Decks: Garruk vs. Liliana common, Duel Decks: Phyrexia vs. the Coalition common, Commander 2014 common, Duel Decks Anthology: Garruk vs. Liliana common, Duel Decks: Nissa vs. Ob Nixilis common, Historic Anthology 1 common, The List common, Time Spiral Remastered common Legality: Legal in vintage, Legal in oathbreaker, Legal in pauper, Legal in brawl, Legal in gladiator, Legal in paupercommander, Legal in historic, Legal in commander, Legal in timeless, Legal in predh, Legal in duel, Legal in legacy, Legal in modern