Shiny Shadow Mewtwo confirmed : r/TheSilphRoad

Mewtwo, Pokémon GO Wiki

Shadow Mewtwo battle confirmed (not as a reward though) : r/TheSilphRoad

New Shiny Shadows Arrive In Pokémon GO Team Rocket Takeover 2022

Confirmation: Shadow moltres is now officially available from Giovanni on May the 1st : r/TheSilphRoad

Shadow raids early release : r/TheSilphRoad

Shadow Lugia has been pushed! (no new assets as of this post) : r/ TheSilphRoad

Mewtwo, Pokémon GO Wiki

Confirmed by a friend in Kiribati, Arlo has Nidoran Male as his Pokemon, Research page 1 and his potential team. : r/TheSilphRoad

New Shadows Announced! : r/TheSilphRoad

Verification, saved super radars get Shadow Mewtwo from Balloons : r/ TheSilphRoad