Critical Success is 5% (ie, 1/20th) of your total chance of success
Special Success is 20% (ie 1/5th) of your total chance of success
Fumble is 5% (ie, 1/20th) of your total chance of FAILURE (or 00, whichever is bigger)
A Gloranthan Epic
Critical Success is 5% (ie, 1/20th) of your total chance of success
Special Success is 20% (ie 1/5th) of your total chance of success
Fumble is 5% (ie, 1/20th) of your total chance of FAILURE (or 00, whichever is bigger)