Hida Musasha wrote:You don't ever factor in the emphasis as what the real world results are going to be. All the emphasis does is prevents very low outliers.
82% to hit 20 is about right. You will get a few more upper ended outliers due to rerolled dice that COULD result in a 10. If you look at the upper ended outliers too closely, you're going to roll terribly a LOT. I suggest you use this grid as is, and just trust the emphasis to keep you from getting something absurdly low. You should hit a 15 almost every time, a 20 will be common, but far from guaranteed. 80% to hit 3 times is very very far from guaranteed.
1-(1*.8) = .2
.2-(.2+.8) = .04
.04-(.04-*.8) =..008
24.8% chance you will fail one time in three rolls factoring an 80% success rate.
Note: it is not fail AT LEAST one time. It is simply fail one time.