I used to be studying lately about double-faced playing cards. Basically, they’re playing cards which might be in any other case typical creature playing cards, however some situation lets you flip them over in order that they turn out to be a brand new card.

Meld playing cards, launched within the Eldritch Moon set, are one pretty noteworthy instance. For occasion, this

Becomes this if you flip them over

How do you truly put double-faced playing cards like this in your deck, on condition that they don’t have Magic: The Gathering card backs? Is it solely playable with sleeves (requiring you to tug it out and flip it over)? Or is there another side that I’m unaware of?