41 x 63 mm card sleeves [41 63mm] 8801 Sleeve Kings Mini USA and depending on the type of person you are you will either use them sparingly or in every game you own Sleeve Kings | Mini USA

The bad news is the internet will happily sell you 103 premium cards that look like they were exported from a cursed JPEG someone found in a swamp

For more accurate valuations, you may even look for professional grading services, such as Professional Sports Authenticator (PSA)

We even saw this in action a few weeks ago on social media

Unlike standard cards, these promos are often obtainable through special events, pre-order bonuses, or tie-ins with products like tins, boxes, and digital bundles

Id say we are in the early metagame, but the metagame hasnt actually formed outside of Japan

Although there are other XX-spells, they are few and far between