To you, this might look like nothing but a simple woodsman's axe.
Katia's not you though. She's a witch hunter and to a witch hunter, this might as well be a sweet machete.

http://www.prequeladventure.com/fanartbooru/ext/wiki/custom_images/machete_1.png
(although, she found this quite a while before learning the ways of the witch hunter, so it's probably just a mistake on her part.
A mistake that we all now have to live with.)

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