Armored Mewtwo is returning to Pokémon Go in five-star raids from 10:00 a.m. to 6:00 p.m. local time on September 5 and 6, marking the Psychic-type variant’s first appearance in over six years since early 2020, according to developer notices on the official Pokémon GO Website and reporting from Mashable.
The Long-Awaited Raid Return
For players tracking rare spawns and limited-time raid rotations, the six-year drought is finally ending. Armored Mewtwo originally debuted to tie into the 2019 theatrical release of Pokémon: Mewtwo Strikes Back – Evolution, a modern 3D remake of the 1998 classic Pokémon: The First Movie. According to Mashable, this upcoming raid window coincides directly with the conclusion of Pokémon Go Fest.
The timing gives active trainers a compressed, high-stakes window to secure a specimen that has remained locked away in digital vaults since the onset of the COVID-19 pandemic in the United States. Developer Scopely confirmed via its platform channels that the combat variant will populate tier-five gym raids for a strict eight-hour window across two consecutive days.
What Trainers Need to Know About the Encounter
The event runs exclusively from 10:00 a.m. to 6:00 p.m. local time on September 5 and September 6. However, collectors should note a significant catch regarding the encounter pool.

Players hunting for the ultra-rare color-shifted sprite will walk away empty-handed on that front, though standard stat configurations and movesets tied to the armored variant remain fully operational for meta use and collection completion.
Navigating the Ecosystem and Global Availability
The underlying client supports numerous regional tongues, ensuring smooth raid execution across international player bases.
As Mashable notes, missing this September deployment means enduring another unpredictable wait, as the developer has maintained a multi-year silence on the asset prior to this announcement.