Ever seen someone free solo a skyscraper?
By focusing, the Thief may shroud their hands in shadowy tendrils that seek nearby objects like static-charged hairs. They cast themselves across any surface the Thief touches, acting as anchors that allow the Thief to scale even the sheerest walls.
Spend an Action and Exert your Mind to activate, lasts one hour. While active, you may climb up any wall or ceiling at half your normal ground movement speed.