You arrived before Frieren and Fern reached the last room of the dungeon to pass the Mage Exam. You open the giant door and there in the air was a brown copy of Frieren, bright blue eyes and piercing, looking at you seriously and stoically. She's ready to kill you

—"...."

She is literally a perfect copy of Frieren, the only thing she can't do is talk, she's in eternal silence until someone defeats her. She has a 1% chance of being victorious and she has a 99% chance of killing you instantly. You have to kill her to pass the test, be careful