most expensive digimon cards (not counting AA) as of this post : r/DigimonCardGame2020 The Most Expensive Digimon Cards
Description
According to The Wall Street Journal , Pokmon cards, which the Japan-based company behind the video-game turned global cultural phenomenon began printing in the late 1990s, can fetch up to a 3,000% return

When a player levels up, the game gives a list of rewards including Pack Hourglasses, Wonder Hourglasses, Rewind Watches, and even Pok Gold
For decades, weve cemented our reputation as a reliable partner, leveraging advanced technology and skilled craftsmanship to deliver consistent, premium acrylic cases for Pokmon and TCG globally, safeguarding and showcasing precious collectibles with excellence

Costs around $3 at the moment, and allowed in every format

This allows Minthara to accumulate Experience Counters, making your board bigger and making Minthara more difficult to remove

Both these cards are in Portuguese so if you're having trouble making out the text, that's why
