The delicate mechanics of catching those with her mind while trying to throw a snowball and make more at the same time are apparently a bit too much. Her aim goes badly, and she throws up an arm to try and block some of the damage from her face regardless of his actual aim, her hood falling off in the attempt.

"I refuse! You'll never take me alive!" But she's already laughing, trying to wrap her mind around the biggest snowball she can imagine, so far behind already and certain of her loss and unable to keep up with packing snow, though she gives it her best try to hit him.