NONE OF THESE TECHNIQUES, OR JUTSU, WERE CREATED BY THE LIVING CHARACTERS IN THE SHOW, LET ALONE THE ONES THAT ARE MENTIONED! THE JUTSU ARE ALOT OLDER THAN EVEN THE FIRST!
ALSO FOR CLERIFICATION, ONLY THREE PEOPLE CAN USE CHIDORI BECAUSE ONLY THREE PEOPLE HAVE THE RIGHT TYPE OF CHAKRA FOR IT. THE SHARINGAN UTILIZES THE RIGHT CHAKRA FOR THE JOB. RASENGAN SI A MOVE THAT ANYONE CAN LEARN WITH A LITTLE PRACTICE. NO SHARINGAN REQUIRED. IT'S JUST SPIRALING YOUR CHAKRA.
Umm no not everyone can use rasengan. You need a lot of chakra control just to use it. Take Kakashi for example he can create the Rasengan but he cant fully use it because he doesnt have enough chakra. There are only 4 poeple that can create it The 4th, Kakashi, Jiraya, and Naruto. but only 2 can use it Jiraya and Naruto. and Naruto is the only one who can use it full potential with the third level Rasengan and there are eight levels of the Rasengan and only the Fourth knows how to get to the 8th level.