Name: Call for Blood Cost: 4B CMC: 5 Color: B CID: B Type: Instant -- Arcane Rules Text: As an additional cost to cast this spell, sacrifice a creature. Target creature gets -X/-X until end of turn, where X is the sacrificed creature's power. Set/Rarity: Betrayers of Kamigawa common, Salvat 2005 common Set Code: BOK-C, PSAL-C Legality: Legal in penny, Legal in pauper, Legal in legacy, Legal in oathbreaker, Legal in vintage, Legal in paupercommander, Legal in predh, Legal in commander, Legal in modern, Legal in duel Price: $0.03 Foil price: $0.75