What Pokemon could stand up to Mewtwo?

[chanveil]

In the Anime what Pokemon do you think would give Mewtwo a run for its money?

[Blademaster]

None other than Mew. Mewtwo was so Goddamn powerful it could stop every Pokemon's special attack and then reverse TIME. I've only ever seen the first 5 or so movies, and nothing in any of them has even come close to Mewtwo's arsenal of powers. The most powerful and versatile Pokemon ever plus the most advanced technology of man... Yeah, it's gonna take a lot for me to reconsider this.