In fact, there are several types of folders for storing maps, such as: Top Loading These folders contain pages to which you can add cards through the top of the envelope
Cosmic Crucible enables more mana, and spell copying, and you have the Council of Reeds to enable multiple legends with the same name
(You see all cards that player could see and make all decisions for them.) Illustrated by Eugene Maslovski Standard Legal Alchemy Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
On the roof, Yuma was challenged by Shark to a Duel and played definitively, allowing Shark to deal lot of damage to him
If you are using spell/trap cards that punish your opponent for certain plays, the computer will STILL perform said plays, even if they lose the duel in doing so
After all, youre getting more of the higher rarity cards on average, more cards in general, and more opportunities for better cards