Sarada Uchiha Doesn't Have Conscious Control Over The Mangekyo Sharingan ...
He's going to die! Sarada Sarada's design for the Mangekyo Sharingan certainly looked exciting. Fans got to see somewhat of some sun-shaped pattern in her eyes, which is quite similar to what ...
The main drawback of using the Mangekyou Sharingan is, that with frequent use, the user's eyes go blind and lose their power. In contrast to the Izanagi or the Izanami, this doesn't happen instantly.
The Mangekyo Sharingan is an extremely powerful technique ... a massive chunk of his chakra would be wasted simply to maintain the eye, let alone using any of its abilities.