This Mewtwo looks legit. It is caught in XY at Lv. 70, so it should have the blue pentagon, and all of those moves can be learnt legitimately in ORAS.
>6 badges means Pokemon up to level 70 obey you. It will probably start disobeying at level 71.
commented 1 minute ago by danielson317
As he said, Winona's badge lets you control Pokémon up to Lv. 70.