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Message: <blockquote data-quote="Tony Vargas" data-source="post: 4333343" data-attributes="member: 996">If you go with each individual die being considered, than 2d weapons (like glaives and mauls) benefit from Vorpal more often, but to a lesser degree than comparable large-die weapons, like greatswords and greataxes.   If you consider the two dice as a unit, then the weapons benefit much less from vorpal, and to about the same degree.For instance, the chance of rolling at least one 6 on 2d6 is about 20%, but you only get 1d6 extra damage, while the chance, while the chance of rolling 12 on a d12 is only a little more than 8%, but you're rolling a d12.  The chance of rolling two sixes, OTOH, is less than 3%.   On a single die weapon, Vorpal adds a little over 1/2 a point of damage, on average - it's very swingy, more so the larger the die, but that's about the average, with smaller dice doing better (.625 for d4 to .54 for d12).  On a 2d6 weapon, counting each die sepparately adds about 1 point on average, while counting them together adds about 1/5th of a point on average.  So, the question is, should the 2d6 weapon be about twice as good, or less than half as good?  Because 'about the same' doesn't seem to be an option.</blockquote>