What does 3d6 mean?
Category:
sports
poker and professional gambling
3d6 would mean, "roll three six-sided dice." Commonly, these dice are added together, but some systems could direct the player use them in some other way, such as choosing the best die rolled. To this basic notation, an additive modifier can be appended, yielding expressions of the form, AdX+B .
Keeping this in view, what does 2d4 mean in D&D?
2d4 means to roll two four-sided dice. 3d8+6 means to roll three eight-sided dice, total them, and add six. 1d20-2 means to roll one twenty-sided die and subtract two.
Similarly one may ask, what is the average roll of 3d6?
1d6 rolls an average of 3.5. The most common number on 3d6 is 3.5+3.5+3.5, or 10.5.
Damage work the same: 7 (2d6) from attack rolling 2 times a 1 would be minimum damage of 2 Maximum damage would be to roll 2 times 6 which is 12. 2 + 12 = 14/2 = 7 average damage.