1.) Kirin is not nature energy. It can't be used with efficacy in doors because it takes advantage of the environment, it uses thunder/lightning chakra. Sage mode uses nature chakra.
2.) Kirin does not move at the speed of light, lightning is seen at the speed of light as any visible image is, but the bolt directed at the target is slower.
3.) Kirin does take time to set up, but Itachi only blocked it because of Susanoo, it's an incredible technique.
4.) If Susanoo exists to block Kirin, there are other ways. Every jutsu has a counter/s.
5.) As far as we know Kirin is complete.
6.) fuuton rasenshuriken (FRS) is incomplete, last time we heard it was 50% at best. Only Naruto can conceivably use this technique even if someone else could learn it at this stage because of the damage to the user.
7.) If Naruto can use wind in time, it should eliminate Kirin
8.) Kirin is for long range while Rasengan is close range, so I don't see the whole comparison here. If you get hit by either, you die, even if you have 3 hearts unless you have the Kyuubi. Given how incredible FRS was in an incomplete form, I'm interested in seeing how devastating it can be in completion. Also, we've seen pictures of Naruto wiping out trees from a distance, so if that's a version of FRS, then it tops Kirin for both long and short range.
2.) Kirin does not move at the speed of light, lightning is seen at the speed of light as any visible image is, but the bolt directed at the target is slower.
3.) Kirin does take time to set up, but Itachi only blocked it because of Susanoo, it's an incredible technique.
4.) If Susanoo exists to block Kirin, there are other ways. Every jutsu has a counter/s.
5.) As far as we know Kirin is complete.
6.) fuuton rasenshuriken (FRS) is incomplete, last time we heard it was 50% at best. Only Naruto can conceivably use this technique even if someone else could learn it at this stage because of the damage to the user.
7.) If Naruto can use wind in time, it should eliminate Kirin
8.) Kirin is for long range while Rasengan is close range, so I don't see the whole comparison here. If you get hit by either, you die, even if you have 3 hearts unless you have the Kyuubi. Given how incredible FRS was in an incomplete form, I'm interested in seeing how devastating it can be in completion. Also, we've seen pictures of Naruto wiping out trees from a distance, so if that's a version of FRS, then it tops Kirin for both long and short range.