Whir of Invention [Mystery Booster] Spider Each of them attacks its

Each of them attacks its owner this turn if able

Set: Beta Edition Type: Enchantment — Aura Rarity: Rare Cost: {W}{W}{W} Enchant land

Set: Guildpact Type: Creature — Elephant Wizard Rarity: Rare Cost: {3}{W}{W} Whenever an opponent casts a spell

Set: Duel Decks Anthology Type: Tribal Sorcery — Elf Rarity: Uncommon Cost: {3}{G} Create a 1/1 green Elf Warrior creature token for each Elf you control

{B}: Regenerate Laquatus's Champion

Whir of Invention [Mystery Booster] Spider Each of them attacks itsSet: 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.