Catalyst Stone [Odyssey] Purple/Yellow tap target creature defending player

tap target creature defending player controls

Whenever Ulamog

Set: International Collectors' Edition Type: Creature — Spirit Rarity: Rare Cost: {B} Flying (This creature can't be blocked except by creatures with flying or reach

Sacrifice Fabled Passage: Search your library for a basic land card

Set: Black & White: Next Destinies Type: Grass Rarity: Ultra Rare Retreat cost: Colorless

Catalyst Stone [Odyssey] Purple/Yellow tap target creature defending playerSet: Odyssey Type: Artifact Rarity: Rare Cost: {2} Flashback costs you pay cost up to {2} less. Flashback costs your opponents pay cost {2} more. The gems' incandescence invades the dreams of all who see them.