I would go for the Sasuke's eye powers + Six eyes.
Sasuke's eyes grant the Mangekyo Sharingan. Which allows him to cast black flame incapable of extinguishing as well as being capable of using a Susanoo which is likely a spiritual exoskeleton. Grants him fluidity in his movements when fighting and with the old, implanted eye from Itachi he got even stronger. After this whole event, he gained the Rinnegan; which can utilize six abilities collectively known as Six Paths technique: controlling attractive and repulsive forces as well as mechanically altering one's body (with Ausra path); extracting souls through Human path and various other things.
Whilst Six eyes, from JJK
The six eyes are capable of vast perception, immense brain processing power and allowing them to precisely manipulate the sophisticated powers of limitless down to the atomic level (which is just a complex cursed energy manipulation), with the six eyes it allows the user to use cursed energy efficiently as well as allowing the mental power to be vastly power and see cursed energy flow in extreme detail.
