basketball card display case Graded Sports shielding your cards from harmful light and dust while maintaining crystal Sports Card Display Case Trading

When this creature enters, clash with an opponent

Then, put one card face up on top (but lowered slightly) of the first face down card, then put a face down card on top of the other five cards

You choose a nonland permanent card from it

It's partly because of the Signer Dragon/Earthbound God ancient conflict, but many of the Dark Signers have personal reasons for wanting to confront their chosen Signer independent of that (though it's implied at least some of the Earthbound chose their Dark Signers explicitly for said connections)

Lastly, each card has keywords and abilities that give hints at in-game mechanics

Rush to the Chaos Shrine to battle Garland, the kidnapper of Princess Sarah