buy pokemon surging sparks booster box POKÉMON TCG: SCARLET & VIOLET — ELITE TRAINER A Growing Storm of Stellar Strength Surging Sparks Booster Pack -

The Pokemon Sun & Moon cycle had 11 successful expansions in Pokemon TCG

My first guess was that it's a set that focuses on battles between different Mega Evolution Pokmon, like the old EX Team Magma vs Team Aqua set, though why the letter X was chosen instead of V or VS beats me

PenUltimate is probably the best of the bunch

The "star" pattern is copied directly from the original card image that they photographed and then they printed that star pattern directly onto the card

For this drop, there is a slim chance that your Bonus card could be an autographed version of one of the cards, signed by the character themselves