It's a fantasy role-playing game.

DM: You are Taryon Darrington, a human artificer . You are the member of the famous group of adventurers. Previously, In the morning, while everyone else is taking breakfast, Pike checks the front door and finds about 20 skeletons waiting outside. She and Grog charge out to handle them.
DM: Prismatic Spray I'm pretty sure is a 60-foot cone. So it is this big old fun guy. What are you doing?
Player: Will it hit the protective thing, as well as the people on the ceiling?
DM: You can try and spray them, as it is a cone. You can aim it up probably to catch the edge of it.
Player: I'm mainly aiming at the two dudes above.
DM: All right, so you can hit those guys and the blackguard, if you want to. All righty, so roll a d8.
Player: A d8? Just 1d8?
DM: For that guy there.
Player: Oh, that's right, to pick the color. Four.
DM: All righty, that's green, so poison for him. For the sphere?
Player: Seven.
DM: Seven for the sphere. That is violet. No effect. Okay, that guy there?
Player: Two.
DM: Two. Orange. Acid. And the guard.
Player: Five.
DM: Five. Cold. All right, so roll 10d6. Failure for him. Failure for the blackguard, who rolled a four. All three of them fail.
Player: Okay. (counting) 39.
DM: 39. All righty... This war priest over here, the one on the far end, as you strike. That was with the acid ray. The green ray strikes him and he goes (death rattle) and slowly dissolves into a pile of purplish-red mush that begins to smear across the roof. The other two are impacted by it, and they're reeling from the pain. They're starting to show some real wear and tear now. That's going to end yours?
Player: Yeah, pretty much. Oh, and I'll fly closer to the sphere. I said that already.
DM: Yeah. Vax.
