Kakashis Mangekyou sharingan is able to use long-range Kamui, allowing the user to create a barrier around a target that teleports them to Kamuis dimension, though this requires precise aim. The usage of the eyes lead Madara to lose his vision.

Also, who has the eternal Mangekyou Sharingan? Uchiha Madara

Accordingly, who has the most powerful sharingan?

Then the time passed by and madara uchiha was said to have the strongest sharingan user ever. After that shisui uchiha, aka shisui the teleporter was the strongest one having control over mangekyo and having awesome eye ability like koto amatsukami. He was the strongest one.

When did Madara get mangekyou Sharingan?

The first version is mentioned by Itachi, while explaining the Mangekyou to Sasuke. In this version, he tells that Madara took his brothers eyes. Itachi shows the scene to Sasuke through Genjutsu, where Madara places his fingers over Izunas eye and Izuna is surprised by the action.