Dawid L. said: /r 1d8+5 + 1d8+5 + 1d8+5 - this one is good, but little long. Maybe is exist simpler option like 3(d8+5) 3(d8+5) rolls a d8, adds 5, then multiplies that total result by 3. This will give you a flat distribution of results: an 8 is just as likely as a 28. 1d8+5 + 1d8+5 + 1d8+5 will give you a bell curve distribution, with 8 and 39 being rare and 23 and 24 being much more common.