The Sharingan is definitely the most complicated ... since he has combined its power with many of his other abilities, for example the Chidori. His left eye, which he gave to Kakashi, can ...

Sarada needs the Rinnegan if she wants to scale up to the stronger enemies in Boruto. She could obtain this power.

As Sasuke’s sharingan continued to develop ... perfecting several jutsu and even pioneering one of his own with the Chidori.