Whats the use of the rules card?

[DuelShockX]

I looked at the wiki but still don't understand in what way is it of use to me. Can anyone explain?

[KingSlendy]

It's useless, it only displays a random message on the screen

[Nixmachine]

It dilutes card pools so that you can't get a Chaos Card

[Benderew]

Yeah rules card is useless theres a bunch of different text that can display which mainly contain references to other games. Other than that its useless haha.

[HalvedDead]

Once used, it displays either a cryptic message or a string of characters.

The cryptic messages reference secrets in the game, or at least, things in the game that you couldn't find initially. There's one message that loosely references the Boss Rush room's door closing after 20 minutes have passed.

The strings of characters are actually seeds that you can use and put into the 'Insert Seed' note and it would unlock 'easter egg' functions that you could enable to make your run more fun, or more challenging.

E.g. BASE - MENT can appear as a string of characters. It is a secret seed that unlocks the ability to make your run have infinite floors. All of these floors are basements too.

That being said, they're now useless since everyone knows the different seeds and the meanings of the cryptic messages.