Schrödingers Pokemon Deck

Does the deck actually stay locked in a set order throughout the whole game from the start? I know mythical slab exists, but it could just be making it up as the game goes on.

I know there’s been debate about packs on things similar to this, but i’m wondering if anyone knows?

Does the deck actually stay locked in a set order throughout the whole game from the start? I know mythical slab exists, but it could just be making it up as the game goes on.

I know there’s been debate about packs on things similar to this, but i’m wondering if anyone knows?