What is the name of the master? How to find more video with this techniques and performance? I saw him before on the video "Karate Master in Shaolin temple in China! [Tatsuya Naka]". You can easily find that video on KZbin. He demonstrated powerful strikes to the edges of the stone with his forearms. If you look thoroughly, you can notice those large dark spots on his forearms - it is the result of that insane body conditioning.