It's a fantasy role-playing game.

DM: You are Vex Vex'ahlia, a half-elf ranger . You are the member of the famous group of adventurers. Previously, you responds,  Speak fast, before I kill you.  you and Trinket enter the room.
DM: And now there's a bear coughing and kind of thrashing about the room. The table it bumps into and it kind of topples over.
Player: Is this like a turn thing or can I do something?
DM: Well, this is just a reactionary moment of you guys coughing and trying to get out of this poisonous fume.
Player: I mean, can I quickly cast Protection from Poison on Trinket?
DM: You can, yes.
Player: Okay. I do that.
DM: Okay.
Player: And that cures it.
DM: That completely removes the poison?
Player: Yes it does.
DM: Okay.
Player: Yay Trinket!
DM: Well done. So that's your action. You now, as you are checking the door and you open it up, you hear all this commotion going off to the side now. Scanlan, you're over there as well, watching as more plumes of these poisonous smoke bits.
