For example, creating three Rhystic Study copies makes it almost impossible for your opponents to play the game without feeding you cards, multiple Archangel of Tithes shuts down attackers, and so on
Contextual prompts: Account creation is prompted as a way to "save your collection" (01:17) only after the user has something tangible to save
While the average value of a pack might be $100, most cards people get will be worth less than what they paid for the virtual blind box
Phyrexian Elesh Norn, Grand Cenobite Phyrexian Jin-Gitaxias, Core Augur Phyrexian Sheoldred, Whispering One Phyrexian Urabrask the Hidden Phyrexian Vorinclex, Voice of Hunger These are only card styles, and to use them, you have to own the actual cards
Meanwhile, Atsushi, the Blazing Sky exiles two cards for playing until the end of your next turn