What are some ideas from different animes you'd like to see for a Mangekyou Sharingan?

I've always felt that Nanatsu no Taizai's Full Counter would be perfect as a Mangekyou Sharingan skill, reppeling physical and magical attacks twice as powerful as the one that was cast, and also Dio's “The World”, in which he can stop time, would be very cool for a Mangekyou Sharingan skill too, even though it's a bit op, what other anime ability do you think would be suitable for a Mangekyou Sharingan?