She can create a square area and after a few seconds it will manifest. After manifesting, it’s considered terrain (meaning enemies cannot walk through it), it also slows down enemies nearby it. When another one of her skills hits the cube or its duration ends, it emits an explosion dealing extra damage.
This a special mode where each hero have a different ultimate, like Wuxetian ultimate that can hit heores 3 times Houyi's ultimate can follow any hero close to it for a few seconds