If someone is running zombies, you play this, choose zombies, and now they are locked down
Marcy: I mean, what is not to like about this card
These sleeves are also great for long-term card storage, like in a binder, which might seem silly, putting a card in a sleeve only put them into a binder, but even then they can slide around and cause small scuffing on the surface of the card, especially on foil Magic cards
Cat Tribal isn't particularly powerful - especially not in Commander, where go-wide weenie decks just don't get you there, but you can do some dumb things with Felidar Guardian if you're looking for some infinite combos and they can potentially trigger this guy's token generation for infinite cat tokens
Bring multiple decks to game night, all while saving space in your backpack for snacks