Whir of Invention [Aether Revolt Prerelease Promos] Duel Decks Anthology When that mana is spent

When that mana is spent to cast an instant or sorcery spell

Duplicant has the power

Each opponent loses 1 life and you gain 1 life

Set: Alpha Edition Type: Enchantment Rarity: Rare Cost: {3}{R} Whenever a player taps a land for mana

to tilt the massive jug for a sip

Whir of Invention [Aether Revolt Prerelease Promos] Duel Decks Anthology When that mana is spentSet: 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.