[Theory] Prime Hiruzen can survive 8th Gate

[dashstrike]

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[Senju Bean]

He did fighting Orochimaru,why did He not used then and lived? Because its a one time move like the dead reaper seal He used thats why.

But in his prime, he can use all Konoha jutsu. So he could use Izangi as well.

He can first use 8th gate, then cast Izanagi as he dies to prevent death.

 

[V h o]

Rikuzen can counter with his own gates or just neutralize gai's chakra from the beginning.