The cards arent covered by the comprehensive rules and are not for tournament play, notably different from being not tournament-legal. While it's true that silver-bordered cards arent legal in any Standard, Vintage, or Modern decks, Wizards still intended them to be used in casual black-bordered formats rather than exclusively with each other
Since this creature draws a card when it enters the battlefield, it can actually function as a sneaky outlet for infinite mana
There are also some other interesting payoffs for cascade built into the deck, so youll definitely be able to make this strategy work right out of the box
Your deck of cards represents all the weapons in your arsenal
In this set, we're representing that idea with quest counters, which first appeared in the Zendikar release
Yes, this is (still) a bit weird