For example, if you control Johann, Apprentice Sorcerer ("Once each turn, you may cast an instant or sorcery spell from the top of your library.") and Questing Druid is on top of your library, you can cast Seek the Beast, but not Questing Druid
Not only does it allow you to play less lands in your deck while still hitting your land drops, but the two card combination of an end step March of the Multitudes, untap, and Flourish is going to be format defining
The operator would then slightly shake the box to make the cards fall through a comb at the bottom of the box
Since so many of your creatures quickly grow into game-winning threats, you don't have to commit heavily to the board, which means more cards can stay in your hand and you're in a better position to reset the board with cards like Sublime Exhalation since your opponents will lose way more stuff than you will
Their gold design is purely cosmetic