1) there are some with fire res/immunity. Over the overall numbers, very few. Tons of hp = use more gunpowder or set up a collapse.
Fire resistance/immunity is the most common resistance/immunity. Also, creature immune to non-magical damage are not uncommon. A group of wererats is going to laugh at your explosives. Also, increase numbers of monsters—you're 10' radius blast that does 7d6 fire damage can affect only so many.
2) Who said I was saying it was common?!?! The OP said the PC's are using it, potentially a lot of it. He said nothing about EVERYONE using it? You are inserting artificial facts in there to support your argument.
Don't use the OP as a shield—you'll notice that they aren't the ones arguing here—it's just you. Also, you're the one that claimed that it was available at any settlement. Stop vacillating.
In any event, that still doesn't mean your enemies have it overnight, especially a whole culture.
Overnight? In your increasingly unrealistic arguments, you're now claiming that all these settlements and PCs have such widespread and unlimited access to gunpowder overnight?
3) Given you keep modifying the scenarios away from the narrative I'm using with artificial evolution of the enemies, I'm not surprised.
Woah there, Nelly. You're the one that keeps changing your arguments. I'm just trying to keep up with you.
4) If we're talking gunpowder, the raw elements of charcoal, sulfur, and saltpeter are NOT hard to procure. They are literally commodities. 'Hard to procure' generally just means 'go to a bigger city, you're exceeding the wealth cap'. If the base rules don't call out going on a quest for rare elements, they, like material components for spells, are considered to be easily available. It's the default rule. You don't have to go on quests for materials to make tindertwigs, which are basically tiny versions of the same thing.
It doesn't matter how common something is, no settlement is going to be able to maintain supply of any commodity when there is constant demand for bulk supplies of it, there are other uses of the material that increases demand, or when other settlements are competing for resources. Commodities still need to be procured, refined/processed/manufactured, shipped. All of that takes time. So, yes, when the settlement you're at runs low of supplies because the PCs (and likely NPCs, too—because if the PCs can do, so can anyone else), you can expect wait times, higher prices (oh, yes, the greater the damnd for something the more sellers that aren't idiots are going to up-charge), and empty shelves. At that point, yeah, the PCs are going to have to go on quests to procure their own if the want to keep their supplies up.
i.e. the standard rule is that unless it has unique/extremely rare comps, you can just buy them. And if it's actual gunpowder, that's truth.
It doesn't matter if an item is mundane—it's not alway accessible (especially in these silly scenarios that you keep inventing). And that's the truth.
5) Not at all. The wizard doesn't have to haul around gunpowder at all, and can unleash several fireballs at will from a great distance away, doing more damage then gunpowder and so killing people, and then do it again tomorrow.
So, you've just undermined your entire position. Congratulations.
So, considering gunpowder a 'massive threat' when these walking cannons are running around is stupid on its face.
Then you admit that your gunpowder scenarios are less powerful than a a standard wizard. Congratulation, your argument is lost.
Gunpowder's ability comes from the fact you can build up an arsenal of it, and unleash it all at once, AND from the fact it gives a non-spellcaster a KABOOM ability. It takes a much longer time to make bullets than to shoot them, after all.
Well, if you're builing up an arsenal of it, you're going to be treated like someone that is stockpiling weapons (which you are). Authorities genererally don't like that sort of thing because it looks like a coup in the making.
Note the OP is Players getting unlimited blackpowder access. Building up a stockpile for use in situations is how you use the stuff... and means that when needed, you can get more fireballs/day then a wizard, and all at once, too. that's how wars are basically fought.
The the PCs with gunpowder
are more dangerous than a standard wizard. Pick a stance and stick with it.You don't get to have it both ways.
6) Because not everyone is a Caster or level 18? CoDzilla is high-end power. Gunpowder is low-end power. A level 1 can light a fuse and launch a keg! True Ubah powah!... oh wait, we just call that a grenade in modern day, ignoring how awesome it would be in a magical world to have your own fireballs as a non-caster.
CoDzilla doesn't need nearly as high of levels as your are suggested. Level 1 PCs are not going to be able to afford a lot of gunpowder, so that's a weak argument. Moreover, since the OP labeled this as a 5e question, your 3e arguments are invalid.
7) 8) Alchemist in PF, artificer in D&D, and other systems generally have magical alchemists in some form or another, too. The balance issues with gunpowder are still there... it's a world-changing advance in technology for a good reason, after all.
Since PF is irrelevant, and the 5e artificer doesn't have any features that grant them the ability craft any mundane objects faster or in greater quantities than any other character.
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