Once a hym is exposed possessing a victim, the witcher way of exorcism comes into effect. Moon Dust keeps this spectre corporeal, while a silver sword coated with specter oil finishes the task. Hyms do not move quickly, compared to other spectres. Their ethereal claws have great reach, and they can sap the life out of their victims with a mere brush, which makes up for their slowness. Evade or roll past the claws and try to strike the hym before it can react. Be aware that after several strikes, the hym will teleport to another corner of its room.