this post was submitted on 22 Jun 2025
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What do you mean here? Any roll is as likely as any other
Do you mean 2-20 is more likely than rolling a 1? Of course it is, but an invisible rogue sneaking at +15 shouldn't be seen by the monster who's -4 to spot 1 in 20 events, or if 20s are also special, 1 in 10 events (one for the rogue getting a 1, one for monster getting a 20)
In that case, and I keep repeating myself: don't roll.
Don't roll for things that can't fail.
They're talking the probability of failure, not the specific number on the die. If your skill bonus meets the DC, you have a 1/20 chance of failing, assuming a natural one equates to an auto-fail. If your bonus doesn't meet the DC, you have a higher chance of failing.