name: Chord of Calling
originalText: Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
  Search your library for a creature card with mana value X or less, put it onto the battlefield, then shuffle.
printings: 2XM, EA3, M15, P30A, PRM, RAV, RVR, SLD
text: Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
  Search your library for a creature card with mana value X or less, put it onto the battlefield, then shuffle.
type: Instant