>>96125493
The best part about limited is how easy it is to cheat.
Because the packs are open for the first time by you, there's a level of disparity and randomness that nobody can really dispute.
So this can't be done during the pre-release but it can be done on any subsequent events.
Simply show up with some limited bombs in your pocket already sleeved, and slip them into the deck that you build.
I'm not talking about rares or mythics, oftentimes in limited the most important cards are your Commons and uncommons, but very specific ones. So read up on the meta beforehand and have a good idea of what cards you want to bring and what Archtype you want to play.
It's basically impossible for you to ever get caught because of the modern composition of the playbooster, and also because in order to catch you they would have to deck check literally everyone and do some sort of tally of how many cards are present, as well as the cards people choose not to include in their decks and even then they can reach a wrong number because the play booster bonus cards mean there can be extra Commons uncommons or even rares and mythics.

So there's an extremely low possibility of you ever getting caught unless someone catches you in the sleight of hand when you slip the cards that you already own into your limited deck, and even then you have plausible deniability as long as they are sleeved appropriately.

Have fun in limited anons!