The nerves were cut and then attached to nerves that control other muscles - such as for extending the arm or opening or closing the hand. For example, nerves that once turned the palm up to face ...
On the other hand, Mayuri uses a strange umbrella to negate the nerves. He continues his monologue and wonders why the Soul King's Left Arm is serving Yhwach. Mayuri uses a unique umbrella (Image ...