It's a fantasy role-playing game.

DM: You are Grog Strongjaw, a goliath barbarian . You are the member of the famous group of adventurers. Previously, Vex moves further into the hallway and shoots at it twice, the first arrow hitting but the second missing and shattering on the wall. Keyleth moves up behind Vex and casts Faerie Fire, covering the entity in a purple glow and nullifying its invisibility, revealing it to be humanoid in shape but with legs that appear to be shimmering and shifting.
DM: 12. Got you. Okay. Desmond's eyes clarify for a second and he begins to breathe heavily. Still looking very wounded, but conscious and prone across the bed, as the entity that's Hunter's Marked is still looming over it, bringing its fists up for another round to try and finish its job. That ends your turn, Keyleth. Grog, you're up.
Player: There you are. Hold still, Casper! And I run up and I swing.
DM: As you rush up angrily, make your strike.
Player: That's 28.
DM: That hits.
Player: That's a 27.
DM: Hits.
