It's a fantasy role-playing game.

DM: You are Vex Vex'ahlia, a half-elf ranger . You are the member of the famous group of adventurers. Previously, Keyleth fires her Sunbeam at him, but he resists most of its effects. Scanlan falls from the sky, as casting his previous spell caused him to stop concentrating on Bigby's Hand, which then dispersed.
DM: The bite attack is 25. This here, you take 15 points of piercing damage-- Sorry, 15 plus eight. So 23 points of piercing damage, total. I need you to make a constitution saving throw.
Player: Tight. Cool, that is a four.
DM: Okay, so you are now poisoned as the fangs poison your body. You feel it pulsing through yourself.
Player: Okay.
DM: And you suffer--
Player: I've got to get my calculator out to find out if I'm about to die.
DM: 25 points of poison damage from failing the save.
