Bending the elements…
Open and widen a crevice in the ground.
Fissure cracks the earth open in a line, creating a temporary crevice that can trap or displace entities. Sneaking widens the fissure, and sneaking on the crevice closes it. The effect reverts automatically after a short duration.
Left-click to crack the ground. Sneak to widen. Sneak on the crevice to close it.