It's a fantasy role-playing game.

DM: You are Vax Vax'ildan, a half-elf rogue . You are the member of the famous group of adventurers. Previously, Percy tells her that he forgives her, but he cannot let her leave. She attempts to cast a fireball spell and Scanlan counterspells it.
DM: Right there? That will get you out of his melee range, but he will get an attack of opportunity on you.
Player: That's all right.
DM: All right. He will take his attack of opportunity on you.
Player: At disadvantage.
DM: Yes. At disadvantage, also because of the sunlight. So that's 25 and 19.
Player: Misses.
DM: You duck underneath. All right, finishing Vax's turn. Keyleth, you're up.
