The Definitive Guide to polyhedral dice
such as, d4 denotes just one four-sided die; 6d8 indicates the participant need to roll 6 8-sided dice and sum the outcomes. When an volume is always to be subtracted, the notation is nds-c or nDs-c; so 3d6-4 instructs the participant to subtract 4 from the result of rolling 3d6. If the result of a modified dice roll is detrimental, it is usually