pokemon card rayquaza V - Crown Zenith [ULTRA RARE] discard an Energy attached to the Defending Pokémon Rayquaza SWSH029 Black Star Promo

These include leader cards, super rare characters, alternate art versions, and special promotional prints distributed during events

The payoff for all that seems insufficient, unless maybe you have some way of flickering Kaito himself, so you can make a Drone, then draw a card, then flicker, then draw or make another Drone

Bracket three dictates "no chaining extra turns", so a deck that did this would be pushed into bracket four, where hopefully it would encounter decks that have the tools to counter it

New booster packs of cards can be gained, new pre-built battle decks added, but all for in-game currency, earned by playing

Appealing to higher-end collectors - collecting all the Gold Stars in high-grade is a legitimate difficult chase (more on this later)