Board Thread:Versus Debates/@comment-3523655-20191203173415/@comment-9782468-20191205221325

IchigoB93 wrote: Tsunade is one of the sannin and one of the most famous shinobi from Konoha renowned for her medical expertise and monstrous strength. Her exploits are known far and wide. Considering the fact that Jiraiya taught Nagato, he should at least have a basic knowledge of Tsunade's capabilities. Don't really think she has an element of surprise in this regard. Yeah Tsunade is a Sannin, but being a Sannin doesn't mean a lot compared to Pain. Ask Jiraiya. Jiraiya barely got 3 down before his arm was ripped off and he was immediately killed. And that was when he was only fighting 3 at a time.

Kakashi's exploits are known far and wise as well, yet he ended up dying after his fight with Pain. Renown doesn't mean you're the strongest.

Jiraiya taught Nagato, but why would he teach them about his teammates? It'd be bad practice to explain the mechanics of your teammate's jutsu to anyone.