sim card sleeve Aluminum Case, 12 Slots Ultrathin Nano SIM Card Holder with SIM Card Adapter Kit for Travelers or Holiday Trip (Silver) : Cell Phones & Accessories Locked drawer keeps items securely held Open IP68 Waterproof SIM Card Tray

They are used in the same way as normal Token cards, however, in order to use them, you must have filled out all the information required for play (this being: Name, Play Cost, Lv., Color, Trait, DP, Effect)

If this is in your deck, its worth having a quick Scryfall search to see what other beasts mirror your creatures mana costs

Sealed : If you can get a Spectral Denial or two in a Sealed environment

I dont want to be harsh since Im a ygo collector and fan, but the truly iconic YGO characters are like 10-15 at best Too complex to collect for a novice: it is cheaper when compared to Pokemon, but it has a ton of reprints and variants, and way more cards available