Rishkar's Expertise [Aether Revolt Prerelease Promos] Alpha Edition sacrifice Masticore unless you discard

sacrifice Masticore unless you discard a card

Set: Alpha Edition Type: Artifact Rarity: Uncommon Cost: {1} Whenever a player casts a blue spell

" —Elesh Norn

Created to destroy Dominia

When you control no Islands

Rishkar's Expertise [Aether Revolt Prerelease Promos] Alpha Edition sacrifice Masticore unless you discardSet: Aether Revolt Prerelease Promos Type: Sorcery Rarity: Rare Cost: {4}{G}{G} Draw cards equal to the greatest power among creatures you control. You may cast a spell with mana value 5 or less from your hand without paying its mana cost. "Control the Great Conduit? You might as well try to divert a river with your hands."