The Pokemon Company also changed the Trainer Gallery for the Crown Zenith set
Exiling all graveyards stops a lot of problematic and somewhat unfair-feeling decks that rely on resurrecting expensive creatures for cheap
With enough creatures, even a middling roll turns into a massive team buff
In each 5-card pack, 4 slots pull from that main card pool, in a variety of rarities, from the normal Super, Ultra, and Secret Rares, to Starlight, Platinum Secret, and the unique Prismatic-style Ultimate & Collectors Rares found only inRarity Collectionsets
If a player interacts enough times with them without moving, they will trap the player within their collision box
While they might not help the mill plan specifically, they are instrumental in ensuring you stay alive to execute it