Friend suggested an odd house rule. He wants to use 4d6 instead of 1d20 for all attacks.
Now im sure we will end up with a bigger average hit, but we will still be using "natural 20" to indicate an allways hit.
Im trying to figure out the probability of rolling a "20" with 4d6.
There would be (6*6*6*6) outcomes, or 1296 outcomes. But how many of those would be 20's?
6662
6653
6644
6554
5555
And then a number of variations of the numbers, but im getting my self confused i think.
Well, what i would like help with, is first to figure out the number of outcomes that sums up to 20, and if there is any way i could get a bigger benefit out of this then the monsters we would be meeting. Seems like weapons with 18-20 crit range would be odd in this system, seeing as if you roll 22, it might be a hit, but not a possible crit.