It's a fantasy role-playing game.

DM: You are Scanlan Shorthalt, a gnome bard . You are the member of the famous group of adventurers. Previously, Tiny Vax, thanks to a potion that does that. you managed to go ahead and put in an Immovable Rod within its stomach, which held it up for a moment, before it decided to truly gain the advantage it needed to escape the circumstance, allowed it to tear through its body, as well as an arrow that was shot by Vex, towards her brother, in the hopes of, I don't know, being a symbol of hope?
DM: Okay, so you'll be there. At the end of your turn, Umbrasyl's going to use another legendary action to make a second tail attack at Scanlan again, frustrated by this whole circumstance.
Player: I'm sure he is.
DM: That's a 20.
Player: Can I use Cutting Words?
DM: You may, if you want to.
Player: All right.
DM: It's a natural 20.
Player: Oh?!
DM: You could reduce the damage though, with your Cutting Words.
Player: All right, I'll do that.
DM: Probably for the best. For that, you suffer 28 points of bludgeoning damage. As the tail swoops down, finding its mark, slamming into you, sending you against the wall of the stonework, and you stumble forward back into place, feeling already the impact of the bludgeoning wound.
Player: That's a four, so.
DM: So you reduce that to 24.
