The d12 is probably the least loved die. People tend to use 2d6 instead. But should they?
The answer is, of course, it depends on what you want to do. The reason is that the results are distributed differently.
|Figure 1: 1d12 results are uniformly distributed while 2d6 follow a peaked distribution favoring moderate outcomes.|
Using 2d6 tends to force more moderate outcomes at the expense of more extreme outcomes. Using 1d12, since the results are uniformly distributed if the die is fair, will result in more extremes.
|Figure 2: 2d6 makes exceeding higher targets less likely while lower targets are easier.|