name: Call for Blood
originalText: As an additional cost to play Call for Blood, sacrifice a creature.
  Target creature gets -X/-X until end of turn, where X is the sacrificed creature's power.
printings: BOK, PSAL
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.
type: Instant — Arcane