It's a fantasy role-playing game.

DM: You are Beauregard Lionett called Beau, a human monk . You are the member of the famous group of adventurers. Previously, Fjord is quickly rendered unconscious, but uses Relentless Endurance to pop back up to one hit point. He is almost immediately hit into unconsciousness again.
DM: You are. Well no, I'm sorry, you cannot move. You did your move, so you have to have an action, so you can only attack that one that you can see there.
Player: Okay, I will throw two.
DM: Okay. They're at disadvantage, because it's beyond your 20-foot initial range.
Player: First one? Man. I'll take that 12, though, for an 18 to hit?
DM: That does hit, yeah.
Player: And that's-- sorry. Seven damage on that one. And then second one... ooh, those are double fours, which I don't believe hit.
DM: Nope. Disappears into the darkness.
Player: And then I'm going to take a ki point and cast-- I almost called it Uncanny Dodge.
DM: You had to do that on your turn. You've only got an action you were holding. Sorry.
