What is Orochimaru's top intelligence feats In the series

[Apple Knight]

Orochimaru

 

[Darth AniCetuS]

Achieved immortality.
Mastered and improved the Edo tensei.
Figured out how to break the dead demon seal.

 

[To Whatever]

He can perfectly clone people and splice DNA whether they're compatible or not. And he can create perfect artificially made humans (mitsuki).

 

[the last uchiha]

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[InfiniteDeath]

Never dying

 

[Nattana]

Created his own dimension.

 

[Darkness Master]

Figuring that sasuke would surpass madara.