Unmasker is Nicolas Cage's down special move.
Cage swings his arms forwards to remove any traps in front of him. The trap-removing effect is activated in the first four frames, while the other 16 leave him vulnerable to attack. For each trap removed, Cage receives 2% damage, unless the trap is the paintings of Painting Place or Pendant, in which he receives 6% instead. The very first frame can reflect projectiles and act as a quick grab-and-throw, meaning this attack can't be shielded or countered.
During one scene of The Wicker Man when Cage's character Edward Malus spots some little girls that look like his daughter, he forcefully removes their masks to reveal their identities, hence the name "Unmasker".