Phantom Force is an offensive Ghost-type move.
Phantom Force causes the user to "vanish" on the turn it is used, making it semi-invulnerable, and then reappear the next turn causing damage. It will hit the target even if it has used Protect, Detect, Spiky Shield, or Mat Block, and lifts the effects of those moves for the remainder of the turn; if it hits a target that is protected by Mat Block, it removes Mat Block from the target's side of the field. It also removes the effects of Quick Guard and Wide Guard from the target's side of the field. Phantom Force cannot remove the effects of protecting moves if it does not affect the target (such as if the target is Normal-type).
Pokémon that learn Phantom Force
By leveling up