>>51005064Not sure on Evolutions but:
>GamesHe fought Eternatus 1v1 for a prolonged period of time and only got knocked out when he sent Charizard to shield (You) and Hop from Eternatus exploding out of the ball. He didn't actually lose any battle against it.
>AnimeLeon gets fucked up physically protecting Ash and Goh and it's worse than the games because Charizard tanks Eternatus to save Lucario and Cinderace.
In Masters we see that one version of Leon actually managed to capture and tame Eternatus so it was certainly within his ability to succeed.