sealed darkness ablaze booster box display Sword & Shield 36 boosterpacks and blazes astoundingly bright as the Legendary Pokémon Eternatus arrives as a Pokémon V Pokémon TCG: Sword & Shield-Darkness

While the wording may be inelegant, it has in fact been confirmed that this can go infinite, with say a Ral Zarek, Nissa, and four forests

Gameplay is similar to standard dueling rules, except that the Side Deck allows less than 15 cards, and is more for convenience of getting to cards for your Deck than switching between duels, as CPU duels are single duels rather than matches (with some exceptions in events)

This info was buried in a presser for New York Comic Con plans surrounding the Japanese children's card game / TV show, saying that a large update will accompany the game arriving on Steam

...I'm going to sell the five milk counters to the Grocery Store for 15 Dairy Dollars

In the right types and quantities, these fair payoff cards can effectively punish treasure decks, opposing infinite combos, even board wipes