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It says that hiruzen was able to use all the jutsu in the leaf. Now I know that excludes bloodline limits and secret jutsu's like the nara clans, but since it says he could use every jutsu, does that give him all 5 elemental releases?
I originally thought the manga said he knew every jutsu meaning he had knowledge, but since it said he could use them, that's implying that he could use all 5 elements.