LITTLE KNOWN FACTS ABOUT D20.

When an amount of money is to be subtracted, the notation is nds-c or nDs-c; so 3d6-four instructs the player to subtract four from the results of rolling 3d6. If the results of a modified dice roll is damaging, it is often taken to get zero or a person; By way of example, when the dice roll establishes the amount of damage to a creature.[forty one