Except in certain circumstances, successful hits with the user's following attacks become critical hits: Pokémon's moves or sync move.
P-Moves & S-Moves Crit (Japanese: P技B技急所化Pokémon Move and Buddy Move Critical Hit) is a skill in Pokémon Masters EX.
Effect
The user's attack moves, including buddy moves and sync moves, always land as a critical hit on all targeted opponents; max moves are not affected. They will not land as a critical hit if the Critical-Hit Defense effect has been applied to the opponent's field of play or if the opponent has a passive skill that protects it against critical hits. If a move or sync move targets all opponents, and one of them has a passive skill that protects against critical hits, it will only land as a critical hit on the opponents that do not have that passive skill.