Dissolve

R: 50 ft; T: creature or object; D: concentration

Target you stare at starts to dissolve, taking [dice] acid damage to Flesh per Round. A creature can Save vs Discipline each Round to negate. It takes 10 minutes to dissolve a 1 ft cube of material.

At 2 [dice], you can dissolve wood.

At 3 [dice], you can dissolve stone.

At 4 [dice], you can dissolve metal.