Is this for D&D 5th Edition? If so crit and fumble should only apply to the attack roll, not the damage roll. But for a damage roll, here is one way to configure a dice roll (there may be an easier way) as a regular roll or as an inline roll: /roll {{1d10,2d1}kh1,9d1}kl1 + {{1d10,2d1}kh1,9d1}kl1 [[{{1d10,2d1}kh1,9d1}kl1 + {{1d10,2d1}kh1,9d1}kl1]] If you want a little breakdown: {1d10,2d1}kh1 rolls a 1d10 and compares it to a 2 and keeps the higher number (minimum damage is 2) { {1d10,2d1}kh1 ,9d1}kl1 Take that result, compare it to a 9 and keep the lower number (maximum damage is 9) {{1d10,2d1}kh1,9d1}kl1 + {{1d10,2d1}kh1,9d1}kl1 Then do that same thing again and add them together.