Fog

Min Min sat up on her knees, moving to the edge of the tub as she watched Corrin, curious as to what she heard.

Corrin slowly moved towards the lockers, sword ready, as she felt a soft breeze, chilling her body compared to the warm air she was used to in the sauna.

Unknown to her, this wind WAS what she was looking for. The intruder, knowing it was found, decided to rush her, trying to possess her body before she could do anything, but to possess her, it turned into a sort of fog, invisible in the steamy sauna. The only downside to this amazing power was the the inability to properly see its targets, it was able to feel just fine, but Corrin was a distance away, and the being needed to take a chance.