The adult Gressle is little known, although he was interviewed in 2015 by high-end card collector Asianyensation, who confirmed Tyler's ownership of the card through Instagram
That said, in terms of actual gameplay, it is one of the better current TCGs
There is plenty thats copyrightable in the game all the artwork, and the way its written but not the underlying rules themselves. Thus, Upper Deck, if the case proceeds, is arguing a breach of contract and fiduciary duty
Additionally, you could float mana from your mana base before casting Balance and then spend that mana on other spells to put yourself far ahead of opponents while simultaneously decimating their hands, board states, and lands
I found this out by looking on second hand markets like eBay and Vinted, where packs and boxes of Pokmon cards are frequently sold for far more than the 4-5 per 10-card booster pack you can buy in the shops