Whir of Invention [Mystery Booster] Spider Slain warriors were buried with

Slain warriors were buried with a tree sapling

Equip {2} ({2}: Attach to target creature you control

Set: Judge Gift Cards 2016 Type: Legendary Creature — Human Wizard Rarity: Rare Cost: {1}{W}{U}{B} Flying

Each of them attacks its owner this turn if able

its owner shuffles their graveyard into their library

Whir of Invention [Mystery Booster] Spider Slain warriors were buried withSet: 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.