Zitat:A simple dice roller:
/dice 2d6 will roll 2 6 sided die. You may also use /roll 2d6. This will let you roll any number of die with any number of sides.

To roll with a modifier you simply append +# where # is whatever you want the modifier to be.
/dice 2d6+3 will roll 2 6 sided die and add 3 to the result.