I didn't see her copy. Was that on-screen?
I'm assuming
Spoiler
Team Protagonist will smash up spiegal before the rest of the party is overwhelmed by the copies. Our test-giver has given this test before, so presumably she has some way of dealing with her copy. Maybe she's found a way to make herself invisible to Spiegel?
She's a pacifist, after all. She may have another solution ... and if she doesn't, is that part of the test? Destroying a first class mage (or at least their copy) would go a long way to prove you've the makings of one yourself.
Respectfully,
Brian P.