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, Keyleth also casts Healing Word on Desmond, bringing him back to consciousness. Grog swings at the entity with his Firebrand Warhammer, hitting all three times and doing heavy damage.
DM: Okay. I will say you would normally get advantage. Because you're attacking it through the bars, melee, it disables it, so it's just a straight attack. You're having to fight it through prison bars with daggers, which is difficult.
Player: All right. So the first one is terrible, it's a 14.
DM: 14 misses, unfortunately.
Player: And that's where the sneak attack damage is, right?
DM: Well, it's the first attack you get on it would get it. So even if you miss the first attack, you can still get it with the second and third.
Player: All right. Third one is a 21.
DM: That does hit.
Player: So there's the delivery system, and that is the Keen Dagger. 26, 27, 32. 38.
DM: All right. With that, the first blade comes through and you try and get it through the bars and it gets nothing. You pull back, take the other dagger and swing through it. Falls too wide and you have to bring your arm back. This time, you can see after Grog has slammed it with the hammer, it falls. The sparkles come towards the edge. Its slamming its back into the bars. It's right there in front of you, and you use that instance to go ahead and reach through the bars, grab it by the throat, and stab it repeatedly, at which point its form disperses into wind around you.
