By and large these mechanics go unused in favor of the stronger and arguably more reliable mechanics that have come to make up the backbone of key decks
For these contests, pictures taken in the videogame were made into Pokmon cards
Electromagnet Warriors[edit] The Electromagnet Warriors share a Quick Effect to Tribute themselves to Summon a Level 4 "Magnet Warrior" on the opponent's turn, and have another effect on top: Overall, they made it easier to get materials for "Valkyrion" and "Berserkion" (which can use material from GY, matching the GY Quick Effect)
The only way to get a new game, I would have to finish the one I had, and show her the ending
Speculation: About the cards, we think the cards are divided like this because the Golden Pikachu V promo is numbered S8a-G 001/015 and the Pok Ball s8a-G 002/015: S8a: Normal (set) collection S8a-P: Promos that aren't S-P neither S8a but are it's own set S8a-G: Golden subset of S8a or seperate promo set
Put these two things together, and the most obvious answers are Uro, Titan of Natures Wrath and Kroxa, Titan of Deaths Hunger from Theros Beyond Death