The seven-colored light of Mega Evolution burst across the field, and Mega Mewtwo Y appeared as well.
Mewtwo Y was incredibly fast, barely able to keep up with Deoxys's Attack Forme.
However, it was still some distance behind Deoxys's Speed Forme.
Even so, as long as it could keep pace with Deoxys's Attack Forme, the battle could continue.
Mewtwo had considered evolving into Mega Mewtwo X, but Mega Mewtwo X was slower and clearly unsuitable for facing Deoxys.
"Legendary Pokémon can undergo Mega Evolution too?"
Goh stared at Mega Mewtwo Y on the field in confusion.
He had already been shocked that Deoxys could change Formes.
But now, another Legendary Pokémon capable of Mega Evolution had appeared.
So, did powerful Legendary Pokémon undergo Mega Evolution, or did they change Formes?
The Eternatus they had encountered a few days ago also seemed capable of changing Formes.
Goh was confused, but Ash was excited.
The battle between Deoxys and Mewtwo Y was incredibly fast, and he could no longer see it clearly.
Still, by concentrating hard, he could make out some of the battle trajectories between the two Pokémon.
Did that mean he truly deserved to be called a Super Rookie from Pallet Town?
Even Lu Ze needed to rely on Aura to clearly see the battle between the two Pokémon under these circumstances.
Yet Ash could see it with nothing more than his eyes.
Even if he could only make out some of their movements.
Just thinking about the two Pokémon made it understandable.
Both Pokémon possessed terrifying speed.
Deoxys had already transformed into its Speed Forme.
While in its Attack Forme, it had been struck twice by Mewtwo Y while attacking it.
If it had not changed Formes quickly enough and shifted into its Defense Forme to block Mewtwo Y's