Astral Projection

Fresh Wolf (幽体離脱 Yūtai Ridatsu) is a Binding Magic Spell.

Description
Tethys is able to completely remove her spirit from her body, binding it with the air. She can then move her spirit around freely and possess objects and living creatures easier than if she were to only place a single piece of her spirit in it. However, in this state, Tethys' body is completely vulnerable. If her body is destroyed, then Tethys will have to find another body of matter to live in. Her spirit cannot be seen unless someone has the ability to see spirits. However, her presence can be sensed by some mages.