Her eyes were closed and she was still, but she was busy projecting what she wanted to see into the eyes and vision of the nobles. Her work was why the noble and his fleeing soldiers were standing still like her.
The lady was actually a rank 6 illusionist. She was the one who made the noble and his soldiers see a large army blocking their way.
In reality, there was no army. There was only her and her two assistants.
She also made the noble think that he was being attacked by 11 judges and two warriors. This too is fake. It is an illusion like the fake army.
She did all of these using her rank 3 divine ability called Environmental Illusion and her rank 6 divine ability called Nightmare. So she is the reason why the noble is just hopping around with his horse instead of running for his life.
While she may be standing, of the three of them, she is the one working the hardest. The two men are just assassins. They are powerful assassins, but anyone can do their current job.
