If someone wants to jump into a cavern and use strength to flap his arms to fly, rolling a d20 can be to see how much the person fucked up. A 20 isn’t an automatic success.
Same when someone mixes a potion, the d20 may be to see how much it will poison the creator if they drink it.
If someone wants to jump into a cavern and use strength to flap his arms to fly, rolling a d20 can be to see how much the person fucked up. A 20 isn’t an automatic success.
Same when someone mixes a potion, the d20 may be to see how much it will poison the creator if they drink it.
Roll to see how badly you fail.