Like in earlier sets where this was the case, I did a statistical analysis of the reverses to check which type of reverse (rare holos, rares, uncommons or commons) were most likely printed only once on the two sheets
[W][W] Great Wave: 160 damage
It is a Water card illustrated by Raita Kazama
The Pokmon will have an alternate shiny color scheme, and gold hollow stars appear somewhere in the artwork
The battle pass has two modes: a free version or a paid version, which is unlocked by spending gems bought from the store
If for some reason, that is not working for you (or I repeated something incorrectly here?), after beating the game and watching the credits, there's a random chance each time you start the game that the Challenge Hall will have a new event to participate in