Storing a deck of cards in a particular order is an incredibly risky idea. Anyone who finds it might use the deck without realizing what it is. You yourself might forget it is in order and absent-mindedly use it or shuffle it. Even if you are clumsy or slip when removing it from the packet and drop a few cards, or even if one end of the packet unexpectedly pops open, good luck trying to access your wallet again.
That's easy to prevent, if you keep multiple backups on different locations.
This is a mindset I have always disagreed with. People create all kinds of stupid methods for generating wallets.
Despite that, I'm pretty sure I can come up with many different methods that will never get hacked. I wouldn't recommend it to anyone, but if I get a deck of cards and shuffle it, I'm certain nobody will ever brute-force the Bitcoin address I create out of it.