It is quite similar to real life when you exchange cards you dont need for cards from other players or a game store
Once per Chain, when your opponent activates a monster effect on the field that targets a card(s) you control (Quick Effect): You can Set this card in your Spell & Trap Zone, and if you do, negate that opponents Effect, then if that monster has the highest ATK on your opponents field, return it to the hand
Doink. The quiet terror of Final Fantasy creeps into your collection with this haunting Tonberry playmat, illustrated by Leonardo Santanna for the Magic: The Gathering Final Fantasy crossover
Why can't you un-shuffle his deck like Analogman
If you're keen to get your hands on MTG Final Fantasy goodies when the set releases in June, there are a couple of ways to go about it
Trading with other Duelists : Another great way to get the cards you need is to trade with your fellow Duelists