Here's a short list of potentially playable cards that allow you to discard aftermath cards for value: As you can see, while red, black, and blue have the most discard outlets, in theory, you can make a discard theme work in just about any color thanks to colorless options like Key to the City and Geier Reach Sanitarium
[20] A 6x8" Pikachu card was included in Top Deck magazine
Starting with generation 6, I have reason to believe the sequence length changed to 360 (10 booster boxes)
For those who want to crash through combat: Caesar, Legion's Emperor, Jetmir, Nexus of Revels, and Ghired, Conclave Exile are terrifying options
Now I don't really know anything about Pokemon
cards considered holo or reverse holo or what