When it first came out, it was very difficult to phantom (pun intended) the impact it was going to have in the game and how powerful it would eventually become
Limited-time events happen frequently in-game, so be sure to check back daily
Even if the opponent does manage to get rid of the cauldron, they often have to deal with what it created
If any of those cards are in your Prize Cards, you can use Peonia [Chilling Reign] to put away useless cards, and replace them with cards you need for the matchup
Finally, the Battle Deck comes with a sticker sheet, two metallic coins, two deck boxes, two strategy sheets, two single-player playmats, six reference cards, two damage counters, a guide for upgrading your decks, and a code card that contains a code players can redeem in the digital version of the Pokemon TCG