If Alisaie Leveilleur and Alphinaud Leveilleur are your commanders, your deck may contain cards with white and/or blue in their color identity, but not black, red, or green
Yu-Gi-Oh!, along with Magic: The Gathering and Pokemon, is one of the original big 3 trading card games
However, this same exact handwriting has been seen on numerous examples
For context, 'base set holo shadowless' means it is a foil version of one of the very first English printings of Charizard, before they adjusted the frame for a second printing to add a shadow behind the art box
This can be hard with Budew in the format, but the deck can decide to play Budew as well, thus slowing down the game to set up multiple Gholdengos until it is time to strike