Whir of Invention [Aether Revolt Prerelease Promos] Base Set Unlimited (They're still affected by summoning

(They're still affected by summoning sickness

Creature you control with toxic lose toxic and gain infect

then discards a card

Set: Commander Masters Type: Instant Rarity: Rare Cost: {2}{U} If you control a commander

Whir of Invention [Aether Revolt Prerelease Promos] Base Set Unlimited (They're still affected by summoningSet: 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.