Dice Codes
1d6: roll one six-sided die
2d6: roll two six-sided dice
2d6+3: roll two six-sided dice and add 3 to the result
2d6-7: roll two six-sided dice and subtract 7 from the result
1d30, 1d12, 1d100+1900: roll one 30-sided die, one twelve-sided die, and one 100-sided die and add 1900 to it...