Its impossible to tell the difference between the real thing and the result. This rote is used by some of the more sports oriented mages to make sure their team is going to win. The mage simply negates the mass of an object. The result is very strange, as mechanical forces on the object have the opposite effect from normal. Gravity repels it.
Pressure attracts it, while tension repels it.
Normally affected objects fall upwards, only to hit the ceiling. This pressure causes it to accelerate even more powerfully upwards, breaking through the blocking ceiling and vanishing with supersonic speed into space. The gravel will force its way through the body of the victim, causing horrendous damage. This weird material is created by a chantry of Sons of Ether in orbit around the moon. It is a material which is impregnable to gravity, essentially isolating whatever is above it from gravity.