Gravity Bomb is a Cypher in Torment:Tides of Numenera.
Gravity Bomb Information
This strange, crudely crafted metal plate is lighter than is looks. A hole in its center glows with a soft, yellow radiance, Two handles nearby allow the user to carry the device. When treated violently (such as being struck or thrown) the cypher's light hardens, and gravity settles harder on everything in the vicinity.
Gravity Bomb Location
Gravity Bomb Notes