I've put together two spreadsheets containing the probabilities for attack and defense dice. These were generated by rolling the dice pools virtually 1 million times.
I have covered most of the possible dice pools but not all. The missing dice pools include those that a Disciple buffs with an additional yellow die, the knights ability to add a brown die, and the thieves ability to add a brown die. I think most others are accounted for.
These are both public Google Documents.