Whir of Invention [Mystery Booster] Modern Masters 2017 Whenever equipped creature deals damage

Whenever equipped creature deals damage to a player

Set: Gatecrash Type: Creature — Homunculus Rarity: Common Cost: {1}{U} {1}{G}: Frilled Oculus gets +2/+2 until end of turn

Set: Kaladesh Type: Creature — Human Rogue Rarity: Common Cost: {3}{R} When Spontaneous Artist enters the battlefield

Set: Rise of the Eldrazi Type: Sorcery Rarity: Rare Cost: {3}{B} Target player sacrifices a creature

Whir of Invention [Mystery Booster] Modern Masters 2017 Whenever equipped creature deals damageSet: Mystery Booster 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.