Synopsis
cast 'orbiting mass' <target>
Description
Sending something into orbit isn't necessarily complicated, it just requires a precise combination of velocity, aim, and confidence. Orbiting something as small as adventurer requires little more than some specific geomancy, and a willingness to radically alter someone else's localized density.
Once in orbit, the mass has a chance to block incoming attacks- but every time the mass is hit instead, it loses a bit of its mass and orbital velocity, making it decay that much sooner.