It's a fantasy role-playing game.

DM: You are Keyleth, a half-elf druid . You are the member of the famous group of adventurers. Previously, The clusters start coalescing into a group that trails around Vox Machina, but are momentarily held at bay by the smoke from Percy’s censer. When Grog, Vax, Vex, and you notice a pair of gloomstalkers circling in the sky above, the group decides to dodge into a nearby building.
DM: It has what looks to be charcoal stones in the bottom clustered around, and these herbs are placed over it, and it's burning and smoldering over time.
Player: Sure. Can I tell what the herbs are?
DM: Make a medicine check. No, this would be a nature check, sorry.
Player: Thank you. Is this something that I would get advantage on for my herb book?
DM: Yes, you would.
Player: 28.
DM: Okay. I get to look this up.
