Whir of Invention [Aether Revolt Prerelease Promos] BW46 Set: Urza's Legacy Type: Creature

Set: Urza's Legacy Type: Creature — Goblin Artificer Rarity: Rare Cost: {R} {T}: Choose target artifact a player controls and target artifact card in that player's graveyard

This effect lasts indefinitely

Set: Sun & Moon: Lost Thunder Type: Item Rarity: Promo

you may draw a card unless that player pays {4}

its power and toughness are each equal to the number of Forests you control

Whir of Invention [Aether Revolt Prerelease Promos] BW46 Set: Urza's Legacy Type: CreatureSet: 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.