It's a fantasy role-playing game.

DM: You are Caduceus Clay, a firbolg cleric . You are the member of the famous group of adventurers. Previously, Vera reveals herself to be a formidable mage, causing an Ice Storm which slows Nott, you, and Yasha and casting Mass Suggestion on the Guards to arrest them. Fjord, seeing the tide turning, summons a demon onto the ship to distract the crew while rushing himself to the aid of Caleb.
DM: You can probably all-- they do round you up. However, as soon as you begin to make any physical action towards spellcasting--
Player: It's all vocal.
DM: It's only verbal?
Player: It's only verbal. And I tell them.
DM: You tell them you're going to cast a spell?
Player: I'm going to be healing everybody. It's a thing that I--
DM: "No spellcasting."
Player: (loud sigh)
DM: "Don't want any funny stuff."
