Ninja Art: Null Void

this is a barrier jutsu that can be used by forming the hand signs Boar, then Horse, and lastly Tiger, then by slamming the user's hand on the ground a barrier will appear and protect the user from an attack. if the user is battling on water than the water would be the barrier, and if on land earth would be used as the barrier. The barrier would only be up for only one attack and is ineffective against multiple attacks.