(Your going to have to be more specific. Seidr is a vague term and its hard to know how to react if I font know what your throwing at me.)

Katherin wasn't really surprised the girl didn't like Mimic. Katherin wasn't sure anyone one did. She was taken by surprised when the girl throw a blast of something at her. Well atleast Katherin didn't have worry about who was going to throw the first blow. Since the Kat had started the fight Katherin felt free to make her move. 

With a deep breath Katherin concentrated her energies on creating icicles. Once she had a reasonable good size one she throw it at Kat.