Bassai dai
Shotokan Kata: Bassai Dai (Storming a Fortress)
Bassai dai is one of Shotokan's most powerful Kata's. "Bassai Dai" simply means "Storming a fortress". Every single move in Bassai-dai is powerful and deadly. This kata is usually learned at 3rd kyu (Brown belt) and is used in grading up until 1st dan(black belt). The older Okinawan version of this kata is known as Passai.
Execution
Bassai-Dai is usually done with good breathing and strong kime. It is a kata which focuses on hip positioning and thus is perfect preparation for the more advanced black belt kata. Bassai Dai is practised in most karate style and is one of the most powerful katas.
External Links
Sensei Kanazawa kata videos Bassai Dai kata diagram