legendary treasures radiant collection booster box Top 10 in Pokemon Legendary Treasures Type Mewtwo (53/113) - Legendary Treasures

Stealth Beast, Tamahagane "Metsu" When this unit is placed, if you have the crest of Evil Stealth Dragon, Shiranui Oboro, you may put the top card of your deck into your Soul or bind it face down, and if your Vanguard is Grade 3 or greater, this unit gets Power +5000 until end of turn

The final way is by dismantling cards

, then Fusion Summon either Loading

Master Duel on PC with BlueStacks, you have access to the Instance Manager, a feature that lets you play on multiple instances of the game at the same time

But I think overall, the combination of re-prints and other factors has an impact on the supply/demand for a lot of the cards and the overall market attitude/perception towards the pricing/value of the cards