crisp cliff
the hitbox is first cloned from ServerStorage and PivotedTo the hrp. The hitbox has a VectorForce and LinearVelocity attached to it, which take effect when parented to the workspace.
As you can see from the video, the hitbox travels some distance, then stops momentarily, and then continues. This happens even when only a single ability instance is active. Also, it happens right around the same spot as the last ability's hitbox, but slightly offset each cast.