GHOST CONTROL.
This quirk allows the user to create and control ghosts. It can also allow the user to fly. The ghosts have the power to drain the morale, self-esteem, and will to live of anyone whom they pass through, described as hollowing out the victim's spirit.
If you use it for too long, you will pass out, be very sick and dehydrated, have a fever and more.
You would have to be extremely focused to summon a lot of ghosts, you can be slightly focused to summon a few. If this focus breaks, then you will lose control over the ghosts for a temporary amount of time.
(Further on in the story she will be able to summon way more ghosts for longer with less focus)
VISUALS: