New to Roll20, just about to get involved in a 5ed D&D game and am trying to get familiar with all the neat little 'gadgets' One that's got me puzzled is when I roll from the weapon section of the character sheet and a whole load of dice will get thrown on the table (I have 3D dice active). I understand why the 2 D20's (in case of Dis/advantage. But why the 3 damage dice? Critical would only require 2 to be rolled. Am I missing something? (Likely, as I'm not THAT experienced with 5ed either :) )