The players can swap any number of cards between the decks, with the requirement that each deck must have exactly the same number of cards as it had before
I think Omnath is giving us a very important signal with these specific cards
We currently don't know exactly in what way, given how new the game is, so there's no precise precedent
In a strange twist, Fallout s Nuka-Cola Vending Machine plays especially nicely with another Universes Beyond crossover: Tales of Middle-Earth
Creating tapped Treasures whenever you sacrifice a Food Token, Nuka-Cola Vending Machine has become an absolute staple in Food Commander decks
Beginners can go for the starter decks pre-constructed packages typically contain up to 60 cards, rulebooks, playmats, and sometimes counters or dice