Whir of Invention [Aether Revolt Prerelease Promos] Vampire put a -1/-1 counter on

put a -1/-1 counter on enchanted creature

"O to Be a Dragon"

Set: Morningtide Type: Enchantment Rarity: Rare Cost: {U}{U} As Declaration of Naught enters the battlefield

its controller adds an additional one mana of that color

Set: Legendary Collection Type: Water Rarity: Holo Rare Retreat cost: 1 [3] Bite (30)

Whir of Invention [Aether Revolt Prerelease Promos] Vampire put a -1/-1 counter onSet: 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.