Also, not to harp on this point too much, but if it's really all about "playing Magic
For example, Rare Candy SSH 180the print of Rare Candy from the Sword & Shield Base Setis legal in the format because Rare Candy CES 142the Celestial Storm print of the cardis from a set that is legal in the Alola format
Like most Pokmon cards, the value of Mewtwo depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Legends Awakened)
This may be due to the existence of an alteration, one with malice or otherwise, a major defect or the original submitter may have requested that PSA encapsulate the card without a grade
For example, Vanquish Soul Razen can reveal a Fire and Dark monster to destroy all other monsters in its column, and likewise, Vanquish Soul Pantera can do the same but with Spells and Traps
After the Duel, the twins backtrack where Lester lived, only to find an empty space