Bill Zebub
“It’s probably Matt Mercer’s fault.”
You know, I've always run it that if you can get full cover you can make a stealth check, and those with special abilities (wood elves, lightfoots, Skulkers) can do so in certain other circumstances.
But thinking through this a bit, including 5e's principle of rolling when there's "uncertain outcome", I think I might change this up a bit: when somebody actually moves around a corner, or otherwise uses cover that really leaves no doubt that they are out of line of sight, I might forego the Stealth check. It's only when it seems like is an "uncertain outcome", like using smaller terrain features, or perhaps smaller terrain features AND light obscurement, that I will ask for a roll.
But thinking through this a bit, including 5e's principle of rolling when there's "uncertain outcome", I think I might change this up a bit: when somebody actually moves around a corner, or otherwise uses cover that really leaves no doubt that they are out of line of sight, I might forego the Stealth check. It's only when it seems like is an "uncertain outcome", like using smaller terrain features, or perhaps smaller terrain features AND light obscurement, that I will ask for a roll.