 To execute, one brings their palms together (slightly off-centre), locks the fingers downward, then swings at an opponent as if they were holding a club-weapon (like a bat).When performed properly, the strong muscle on the side of the hands can cause a great deal of damage especially against bony protrusions on the face.When grappling, the hammerblow can be performed directly upwards (like an uppercut) and will likely shatter the chin.