>>47504153Going by lore, yeah that's about as strong as he should be. Mega-Mewtwo is already a planetary threat... I'd assume Shadow Mewtwo to be even stronger.
Of course it'd take him some time to charge an Earth-busting shadow ball but it's doable, same as Rayquaza who can destroy world-ending meteors with his hyper beam (meaning that if he just shot against the Earth... well it'd be even worse than the meteor)
