When pain fought with naruto, he used rikudo powers only (Tendo, Ningendo, Chikusodo, Gakido, Shurado, Jigokudo). Why didn't he use another jutsu such as 5 elements perhaps?
Nagato managed to control and mastered 6 chakra of nature when he was 10 years old. (Mentioned by jiraiya when he realized that chikusodo pain using kuchiyose no jutsu only)
5 elements must be powerful, since if he use 5 elements he's rather like kakuzu. And even kakashi was overwhelmed when he fought 3 kakuzu's jutsu: katon, raiton, and fuuton.
So, what's the problem?