Personally, I think it might be the absolute best
Responses online have ranged from the pragmatic calls for a nerf, attempts (largely in vain) to come up with counter decks to the downright furious, with one particular Reddit thread simply titled: "WE GET IT YOU LIKE THE MEWTWO EX DECK!!!" Overall, the consensus seems to be that once you see a Ralts popping up in the bench behind a Mewtwo, you might as well concede
Modern mechanics like Indestructible, Shield Counters, and Death-and-Return effects (i.e., Supernatural Stamina) are all much more intuitive to understand at a glance
a single box is a souvenir
Series Charmer deck Yu-Gi-Oh
Neo-Spacian Air Hummingbird X WIND Level 3 [ Winged Beast / Effect ] ATK 800 DEF 600 Once per turn: You can gain 500 LP for each card in your opponent's hand