In my current 5e game, I have some items that have soft limits on how often you can use them, in that each time you use them you make a con save or gain a level of exhaustion, and the dc increases as you use them more, and the dc resets when you finish a long rest without any exhaustion.
In my current 5e game, I have some items that have soft limits on how often you can use them, in that each time you use them you make a con save or gain a level of exhaustion, and the dc increases as you use them more, and the dc resets when you finish a long rest without any exhaustion.