Sorcerers Apprentice
Hero
Do people regularly use DCs of 20 and higher that many characters can't possibly hit in their 5e games? I think this rule will have little impact on actual play. In my experience, if you need a 18 or more to succeed on a roll, it already feels like a serious long-shot.
A side note; I don't go around remembering the PCs modifiers when I decide to call for a roll, so auto success/failure usually goes like this:
DM: make a DC 10 athletics check
Player: I've got +9 so 10 is the lowest I can get.
DM: Ok, you succeed, no need to roll.
in 1D&D the roll will be mandatory since failure is always possible on a 1. That's really the only difference between the old and the new rules.
A side note; I don't go around remembering the PCs modifiers when I decide to call for a roll, so auto success/failure usually goes like this:
DM: make a DC 10 athletics check
Player: I've got +9 so 10 is the lowest I can get.
DM: Ok, you succeed, no need to roll.
in 1D&D the roll will be mandatory since failure is always possible on a 1. That's really the only difference between the old and the new rules.