Mewtwonite Y
mega stones
Effect
Held: Allows Mewtwo to Mega Evolve into Mega Mewtwo Y.
Summary
Held: Allows Mewtwo to Mega Evolve into Mega Mewtwo Y.
Held: Allows Mewtwo to Mega Evolve into Mega Mewtwo Y.
Held: Allows Mewtwo to Mega Evolve into Mega Mewtwo Y.