I would DEFINITELY play them
The gambling aspect of the Game Corners in the video games has been under fire for many years now, causing the Gambler trainer class to become the Gamer class in the English versions of FireRed/LeafGreen and even causing the Game Corner itself to be altered and/or removed entirely in more recent Pokemon games
It's a philosophy I didn't expect to hear, but I certainly have an appreciation for it because it's what has made the game so fun even after all these years
Lysandre is key in this matchup in order to get around defensive cards in the Active position while simultaneously Knocking Out Phanpy and Donphan
You can find Mew ex 30C 158 on Cardmarket, TCGPlayer and eBay
Suitable for Japanese Sized trading cards, perfect fit Yu-Gi-Oh, Munchkin, Cardfight Vanguard, and also Kpop photocards