Mystique's puppety-Wirt face isn't nearly so limited, so during real-Wirt's whole diatribe, her expression looks confused and exasperated. Have they entered a Shakespeare play?

No matter! She's here for a purpose! For a cause! And no matter the incessant babbling of her opponent, she will do what she came here for! Wirt's face reverts back to the smiley, blushy thing it is, but now there are angry eyebrows on it, too.

"Mystique," she repeats slowly, as if that'll somehow convey the message better. "Mystique, Mystique Mystique!"

Fight me! in other words.

Because, well. She can't do anything until he makes his move. So move!