Armored Mewtwo is the second form of Mewtwo to appear in Pokemon Go. The armored version is an advertisement for the upcoming movie Mewtwo Strikes Back: Evolution and is based on the original armor we see on it in the first Pokemon movie.
You might think this is just a new suit and the armored version is basically the same as the original. Truth be told, Armored Mewtwo has more defense and far fewer attacks than the standard Pokémon, making it a little less valuable to raid teams. However, he has the same weaknesses as the original Mewtwo.
— Giratina's original form with Shadow Claw and Shadow Ball
— Gengar with Shadow Claw and Shadow Ball
— Tyranitar with Bite and Crunch
— Sizor with Beetle Bite / Pruner and X-scissors
— Gyarados with Bite and Crunch
— Houndum with Flaking and Dirty Play / Crunch