Here's how it works: you cast the creature card, and sometimes it enters "Prepared" while other times you'll need to find a way to make it "Prepared." Once it's "Prepared" you can then cast the spell on its box (following the mana cost and any timing restrictions)
For three mana you can turn it into a Plant creature with reach and p/t equal to the highest mana value among your commanders
Luster Pendulum, the Dracoslayer X LIGHT Level 4 [ Dragon / PendulumTunerEffect ] ATK 1850 DEF 0 P Scale 5 Once per turn, if you have a card in your other Pendulum Zone: You can destroy that card, and if you do, add 1 card from your Deck to your hand, with the same name as that card
You can hop into a discussion about bulk cards with like-minded players on the Draftsim Discord
Spy Kit 2.4%inclusion 1.0lift 1 decks 41 decks Hawkeye's Bow 2.1%inclusion 0.7lift 1 decks 47 decks The Ten Rings 2.0%inclusion 0.6lift 5 decks 245 decks Voltaic Whip 0.9%inclusion 0.9lift 2 decks 211 decks Cosmic Cube 0.9%inclusion 0.1lift 2 decks 224 decks Captain America's Shield 0.8%inclusion 0.1lift 2 decks 239 decks My Precious 0.5%inclusion 0.7lift 2 decks 380 decks Damocles Base, Sword of Kang 0.5%inclusion 0.0lift 1 decks 204 decks Doom's Time Platform 0.5%inclusion -0.3lift 1 decks 204 decks S.H.I.E.L.D
You will need the following cards for this mission: Genetic Apex Museum 2 Reward : 36 Wonder Hourglasses, 12 Pack Hourglasses, 10 Shop Tickets How to Complete : Get every one-star card in the Mewtwo booster pack