Gladiator Beasts are A theme that lets you activate the effects of its monsters when called to the field by another Gladitor Beasts effect, then after they battle, they can be returned to the Deck to call for another Gladiator Beast
The Art Guard magnetic case allows you to hold or show off your cards, without having to compromise on looks T
So, because you can summon the same monster you bounce with it, Swap is prefect in the deck as protection against Sakuretsu Armor, Snatch Steal, or anything else that might target a Sphinx, Gorilla, or squirrel
I bet there will be like a 2 card limit or something and not much card draw to increase skill expression while keeping things pretty simple and increasing the impact of individual card pulls from packs It is designed to be a lighter, faster, and simpler alternative to the real PTCG
Greater access to the internet and a refresher of the rules with Kaldheim have fixed this