Sword of Kusanagi: Chidori Katana

This technique allows Sasuke to flow his Chidori through his katana. This makes his Katana nearly unblockable as the radiating and chirping blade can easily cut through steel. Furthermore, if an opponent is stabbed, their body goes numb due to the Lightning Chakra. Their muscles are hit by the electrical current causing them to go stiff, making it impossible for the opponent to move.