It's a fantasy role-playing game.

DM: You are Percival de Rolo, a human gunslinger . You are the member of the famous group of adventurers. Previously, Vax pulls Scanlan aside and pitches him a backup plan. He wants to have Scanlan Dimension Door into Umbrasyl's stomach and use the unmovable rod to hurt him from inside.
DM: Three hours, so, from what he's doing with the aid of people that aided him, which would be Vex asking about, the few folks that have any experience with any sort of blacksmithy are the folks that make horseshoes, and that's the extent of the complication they can create. So they can attempt to, with your aid, craft some springs. They have the materials to do very basic metalwork and ironwork, but the people you encounter, two folks in particular, they're both a little confused by your overall design and are waiting for you to lead them in a specific direction.
Player: Okay, I'm just going to take them and I'm going to start building one and see if they can follow suit then. Three springs will be more than enough for this design.
DM: How big a spring?
Player: I would say, how tall is this dragon?
DM: Roughly 30 to 40 feet, depending.
Player: About a two-to-three-foot spring, then. Three two-to-three-foot springs made of solid iron. Just enough to lift the system and toss. And it's just, you make them like chainmail. It's a process that exists. I'm not going nuts.
DM: I'm not saying you're going nuts. You are a little stretched for supplies and manpower based on the circumstances in Westruun for a complicated task, but it's fairly possible, but it will pretty much take the entirety of your day and most of your night to prepare this. You'll be able to squeeze by with this, with the construction of the device, and have maybe just enough room for-- I'll let you squeeze in a long rest.
Player: That'll be perfect.
DM: But that's success or fail.
Player: That'll do.
DM: Okay. What are the rest of you guys planning?
