This is one of the oldest kata in the system and is common, in many variations of both technique and name, to different styles of Japanese karate. This kata is known for its application of power and strength and changing disadvantage to advantage by the use of switching strikes to blocks and blocks to strikes. Extreme use of hip rotation is a hallmark of this kata, although all of the major hip actions can be found throughout it. This is a Shuri-te school kata of Itosu. There are two forms of Bassai taught in the Shotokan syllabus: Bassai-Dai, and Bassai-Sho. Bassai-Dai is considered one of the most important kata for shodan black belt level, along with Jion, Tekki and Kanku-Dai.