Apart from her Shift 4 keyword ability, Yzma also has a Cruel Irony ability that reads: When you play this character, shuffle another chosen character card into their players deck
Pokemon theme decks are official pre-built decks from The Pokmon Company, consisting of 60 cards themed around a central concept, such as a Pokmon type (e.g., Fire or Water), a legendary creature like Mewtwo, or a strategic playstyle like energy acceleration or disruption
Many players will view the pack as more daunting than beneficial unless the creators resolve this.
1 Kindred Boon
One mana tricks really tend to overperform, even when the lack the ability to save a creature from most removal like this One mana tricks have been some pretty serious business of late, and I think this looks like another solid one
Chansey is luckily respected in the TCG, at least when talking about the Base Set shadowless version