Chord of Calling [Ravnica: City of Guilds] Journey into Nyx you may exile a card

you may exile a card from your hand

Set: Homelands Type: Artifact Rare Cost: {1} {3}: You may put a Minotaur permanent card from your hand onto the battlefield

destroy Worms of the Earth

Set: Portal Three Kingdoms Type: Sorcery Uncommon Cost: {1}{R} Draw four cards

As Breeding Pool enters the battlefield

Chord of Calling [Ravnica: City of Guilds] Journey into Nyx you may exile a cardSet: Ravnica: City of Guilds Type: Instant Rare Cost: {X}{G}{G}{G} 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 converted mana cost X or less and put it onto the battlefield. Then shuffle your library.