Torment magick
An angel came to the earth to warn the world of a coming evil. A person so horrid with a soul so black. This person would lead humanity into an age of eternal darkness with horrors unending. Their reign would be short, but the suffering will last forever.
In response, humanity did the only logical thing. They devised a powerful machine that would purify sin and destroy the evil parts of the soul. The tormentum. This engine purges the sin from their flesh through torture and releases an energy called folly.
Folly is used to power strange machines, including androids and battle engines. But it can also be used in magick.
Magick users draw out the corruption of the folly. With the energy gathered, the user can cause different simple effects. Strengthening the body or enduring great pain. Causing blasts of energy.
But with mysterious black cylinders, called grim, that are records of the suffering in the tormentums played by a lantern shaped device allows for more specialized powers. Anything within the range of the sound played by the device can and will be affected. Be it healing screams or curing grunts. Or blinding songs of horrible pain.
Some magick users have focusing tools like cones, so the sounds only affect others away from the lantern.