8 Pokmon TCG:Celebrations4-card booster packs
As the numbers show, this is more evidence that the disparity between the HP of fully-evolved Pokmon and pre-evolved Pokmon has been growing substantially, just like the example of Hitmonchan and Electabuzz demonstrated before
That way, the promo art can be fully enjoyed by players
Additionally, it provides 1 of any type of Energy for the purpose of fulfilling Energy requirements for attacks and Abilities, making it effectively 1 Rainbow Energy for whatever Pokmon it is attached to
What makes it really click is its flow
The fourth card has a 2.57% chance to be Rare, a 0.5% chance to be a Super Art Rare, a 0.222% chance to be Immersive Rare, and a 0.04% chance to be Crown Rare