Definitely a nod to the Deck of Many Things from D&D. Like the Tarot cards, this adds some randomness that you may or may not enjoy in your games.

Of note are The Champion and the Sword. These say from your collection, not from your hand or deck. That means you can open up your binder and grab whatever 5xp Exceptional item/ally and throw them down. It doesn't even reference deckbuilding restrictions, so you can grab anything. That's pretty bonkers and again can be pretty swingy.

Most of these options are more beneficial if they proc early in the game, with King of Hearts, King of Clubs, and definitely Ace of Spades being exceptions.