This Pinsir is a bug-type owned by Alva debuting in Volcanion and the Mechanical Marvel. It was temporarily used by James and is able to Mega Evolve. When it does, it changes into a bug/ Pokémon.
Biography[]
Pinsir was loaned by Alva to James for capturing Magearna. James had Pinsir evolve into its Mega-evolved state and attack Ash and others to capture Magearna, however, it was quickly defeated by Volcanion.
Pinsir and Heracross most likely returned to Alva, but in any other case, it was freed from Alva's control when Ash destroyed the Mega Wave Crystal.