Mega Mewtwo Y

Game data

Mega Mewtwo Y sits here because the games give its Mega Evolution Y a base Speed of 140. That integer is a battle stat. The explanation is game lore, not a running speed.

1. A stat, not a stopwatch

   Base Speed is the number a battle uses before natures, items and stages. PokéAPI, Bulbapedia and Serebii agree on 140 for Mega Mewtwo Y. None of them timed an animal.

2. Mega Mewtwo Y

   Mega Mewtwo Y is the games' psychic-leaning Mega, with its own stat block and a high Speed. It is not Mega Mewtwo X, which spends the same idea differently. Both are separate rows because the integers differ in role.

3. Mega Evolution Y

   Mega Mewtwo Y is Mewtwo's Mega Evolution Y. The games publish a separate stat block, so it is not folded into the base form.

Nearby on the base Speed list: Dragapult and Zacian. Same kind of stat. Different lore.