Hatake Sakumo and Chiyo were old rivals, and they knew each other's strength and fighting styles well.
In terms of strength, Hatake Sakumo should have had a slight edge. You could tell from how he repeatedly sliced through the Chakra Threads Chiyo used to control her puppets.
But Chiyo was a Kage Level fighter in her own right. With her peerless puppet skills, Hatake Sakumo couldn't take her down quickly.
Meanwhile, the battle between Jiraiya and the Fourth Kazekage was far more spectacular.
The Fourth Kazekage possessed the Magnet Release Kekkei Genkai. Yamanaka Tohru remembered that the original story never specified which two natures combined to create Magnet Release, but after seeing the Fourth Kazekage's mastery of Wind Release and Lightning Release, he had a rough idea.
A Kage Level fighter was sure to have more than two chakra natures. Most elite ninja possessed at least two.
The Fourth Kazekage was no exception, but judging by how he used various forms of ninjutsu, Yamanaka Tohru was certain that Wind and Lightning had been his natures from the start.
As the Fourth Kazekage, Rasa understood techniques far better than the average person. Jiraiya, meanwhile, had trained under the Third Hokage, the "Professor of Ninjutsu," and had mastered the application of techniques.
Neither side could gain the upper hand in their ninjutsu contest. Aside from Lightning Release, Jiraiya could use ninjutsu of the other four natures, while the Fourth Kazekage was also exceptionally skilled in ninjutsu.
"I never expected the Third Hokage's disciple to be this strong. If we were fighting somewhere else, beating you really wouldn't be easy!" the Fourth Kazekage said.
"You mean you could easily beat me in the desert?" After their exchange, Jiraiya had a good understanding of Rasa's strength. He couldn't beat Rasa without entering Sage Mode,