Last night a "orc" rolled a 20 on a 20 sided die. If that happens, we roll TWO 10 sided dice to look at a critical hit chart numbered 01-100 (one 10 sided die is numbered 00-90). I then rolled a 00-0 which is considered "100" so the character suffered death. We always roll god saves (meaning a god will save them if the player then rolls 00-0 with 2-10 sided die). Well, The player the rolled 00-0 with witnesses. I couldn't believe it!
What is the total probability to roll these numbers consecutively, meaning one after the other:
-"20" on a 20 sided die once, then... -"0" on a 10 sided die FOUR TIMES IN A ROW