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 Legality: Legal in predh, Legal in vintage, Legal in paupercommander, Legal in modern, Legal in penny, Legal in pauper, Legal in duel, Legal in commander, Legal in legacy, Legal in oathbreaker Price: $0.06 Foil price: $0.30