The Body Flicker is one of the basic techniques that most shinobi can use. Any time that a shinobi disappears into a puff of smoke, sand, dust, etc., they are using a version of the body flicker. Narutopedia only lists the two CONFIRMED users of the technique, but we can assume that there are others that use it as well (like Jiraiya, Kakashi, Gaara, ANBU, etc.)
The only reason that Shisui was known for the Body Flicker was that he was really good at the technique. Much like Naruto is really good at using Shadow Clones, or Lee is really good at Tai Jutsu. Both are very basic techniques that if trained at become extremely useful and formidable both in and out of combat.
The only reason that Shisui was known for the Body Flicker was that he was really good at the technique. Much like Naruto is really good at using Shadow Clones, or Lee is really good at Tai Jutsu. Both are very basic techniques that if trained at become extremely useful and formidable both in and out of combat.