Whir of Invention [Aether Revolt Prerelease Promos]Set: 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.

at least one of which is the chosen word

you gain 1 life for each spell you've cast this turn

"I do as I please

Set: Gatecrash Type: Land — Mountain Plains Rarity: Rare ({T}: Add {R} or {W}

At the beginning of your next main phase

{T}: Add {G}{G}

reveal the top four cards of your library

Set: Legends Type: World Enchantment Rare Cost: {U} Players play with the top card of their libraries revealed

(An exerted creature won't untap during your next untap step

Whispering One

Set: Unlimited Edition Type: Artifact Rare Cost: {4} All Swamps are 1/1 black creatures that are still lands

sacrifice Arcades Sabboth unless you pay {G}{W}{U}