Forbidden Jutsu is total power

Techniques like Edo Tensi which summons the dead, earth grudge fear that can grant you immortality under certain circumstances and summoning the death God which can seal the soul away are all classified as S rank. If an S-rank missing Nin Ninja learned Most of the forbbiden jutsu technique, their power can exceed most of the kages. So far, the list of the Forbidden jutsu's are:

Creation Rebirth- By Tsunade. It can completely heal.

Flying Thunder God Technique- Created by Minato; only he has learned it. Similar to Madara's space/ time technique.

Red Secret Technique: Only Sasori was able to perform it. Now that he is dead, the technique dies as well.

Sealing technique : The Gedo Mazdo. Unfortunately, Madara will be able to use it. The downfall of this technique is possessing the rinnegan; so this technique cannot be learned.

Kirin: By Sasuke. Its classified as forbidden because it can create a lightning dragon storm that can eliminate an opponent. Seriously, I don't think their is any specialty to this technique if it didn't kill anyone.

Earth Grudge Fear and the Jashin Technique: Both can grant the user immortality under special circumstance.

In order to acquire most of these techniques, you either have to have the Rinnegan or the Sharingan, but most of them were created by strong Shinobi's. The second Hokage Created Edo Tensi and only Orochimaru robbed it and Kabuto became the successor . So each village must have created a secret forbidden technique That S-rank ninja's could learn it. The main point is somewhere down the line, these techniques will be quite useful for ninja's to use in time of war and should learn it if they want to win a battle.

Why can't Jounins learn Forbidden techniques from their village? When the time comes to defend against the enemy, Having to learn these technique will aide them greatly.
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i agree jouunin elite should be taught these jutsu because they need stronger jutsu. but the down fall is if the ninja becomes rogue the village secretes could be told.

So veryy truueeee