Whir of Invention [Aether Revolt Prerelease Promos] Spirit Cleric sacrifice an artifact

sacrifice an artifact

When Eternal Scourge becomes the target of a spell or ability an opponent controls

(While they're phased out

Sacrifice a permanent: You gain 1 life

sacrifice Dragon Whelp at the beginning of the next end step

Whir of Invention [Aether Revolt Prerelease Promos] Spirit Cleric sacrifice an artifactSet: Aether Revolt Prerelease Promos Type: Instant Rarity: Rare Cost: {X}{U}{U}{U} Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.