SM isnt a jutsu.
most k11 wasnt devolped and they could all have summonings at this point and they all used rasengan
with no training
it doesnt bother me im asking a question
rasengan his main and only jutsu
You seem to confused using and creating and maintaining rasengans, Naruto created and maintained the rasengans while the K11 used them. What's the one jutsu Naruto knows? Naruto knows the transformation jutsu, release jutsu (from genjutsu), Summoning jutsu, Rasengan's variations, Shadow clones/multi-shadow clones, Mini tbb (he use in KM/BM), Senjutus (SM jutsus), chakra transfer jutsu, Sealing jutsus (which controls his seal), tbb (in BM/BSM), Some unknown jutsus that Minato wanted Naruto to complete with Kurama's power. He was also the one to make the shadow shuriken jutsu that he and Sasuke used on Zabuza, Naruto came up with that and toss Sasuke the shuriken.
And it was Naruto who made the FRS, Kakashi stated that much and how Minato died before adding his own element to the rasengan.