Monstrous Compendium Vol. 1: Spelljammer Creatures
Frozen Sick
D&D Beyond Basic Rules
Basic Rules (2014)
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Monstrous Compendium Vol. 1: Spelljammer CreaturesFrozen SickD&D Beyond Basic RulesBasic Rules (2014)Sign in to view your library & saved favorites.
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It seems pretty clear that the intent of the spell is that stuff from outside can't pass through the "hut" into the inside, which would include poison gas.
pronouns: he/she/they
The party should love Leomund's Tiny Hut, it's a great spell.
There's several things going on here:
I can't see any way the party is avoiding taking the poison gas damage, unless they can make themselves immune to poison or otherwise leave the area. (Rope Trick probably works fine).
And surely the damage should prevent them from taking a rest at all, right?
That’s saying the Hut produces it oxygen.
Your third point is an interesting fact that I had not considered (yes, the gas is ever present all around it’s an part of the air) and unless the Hut produces it own oxygen the poison would be present within.
would it prevent a long rest another good question and one I’d need to look into.
It's magic; by definition, it doesn't have to follow the laws of physics.
But I would say that's implied by the fact that it says "the atmosphere is comfortable and dry" no matter what.
pronouns: he/she/they
This is how the adventure describes the gas
Unfortunately for the PCs, poison gas is not a creature, object, or spell of level 3 or lower, and thus it comes down to how you interpret "The atmosphere inside the Emanation is comfortable and dry, regardless of the weather outside." Specifically:
I'm not sure what the atmosphere being comfortable and dry has to do with poison gas. Poison gas is not weather.
And if nothing passes through the hut, then nothing passes through the hut. It doesn't have to follow the laws of physics, but it does have to be self-consistent. And oxygen not passing through the hut is a problem. If gasses pass through the hut (perhaps because they're not objects), then the poison gas passes through the hut.
Why are people saying poison gas isn't an object? It's a collection of miniscule objects. Any gas is.
I'd argue, based on the description above, that they need to clear the gas at the time the Tiny Hut finishes being formed. Something like a Gust of Wind or Warding Wind spell should do it for the short time it takes to spring into existence at the end of its casting. Maybe even just a Gust cantrip if you're feeling generous. Any way to clear it is in DM territory though, as is the final call for whether or not it remains in the Tiny Hut at all.
Because D&D rules it isn't one. An object is a 'distinct thing' (thus, liquids and gases do not qualify). A hut does separately protect against water because of the clause about the interior remaining dry, but gases and non-wetting liquids would pass through.
If you create it under water, then YES it does.
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This is not apparent to me at all.
Also, I'm not even convinced it excludes the water. Sure, the "atmosphere" inside the LTH is dry and comfortable, but the problem is - there's no atmosphere in the LTH, and it never says it creates atmosphere. So all zero atmosphere in the LTH is dry and comfortable.... congrats, i guess?
Each particle of poison gas would be a distinct thing.
Do you believe people who try to take a long rest in an LTH suffocate?
This is a loaded question. If I answer yes, then obviously that's a bad answer. If I answer no, then "air particles are distinct objects under that rule too, and oxygen will deplete over time".
Instead, I offer: Air is part of the atmosphere, which is magically preserved by the text of the spell. Other things in the air, however, which aren't a natural part of the atmosphere, must be accounted for.
@BKThomson If you consider that a dragon's breath weapon is not magical (e.g. fire from a Red Dragon or poison from a Green Dragon) and that it can affect creatures inside the hut, then you can rule this similarly.
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- How do I tell if something in the game is magical?
- How do I tell if something in the game is magical? (5e)
- Is the breath weapon of a dragon magical? (5e)
It 100% affects the atmosphere, though.
What's oxygen? Creatures in D&D breathe air. And yes, the air presumably needs to be refreshed, or it eventually goes bad, but that doesn't mean the O2->CO2 cycle is actually involved.
This is ultimately a DM's call, and arguments from real-world science don't establish how it works. Even if oxygen is a thing, and the hut doesn't create its own, it still could keep the gas out.
This is the problem with a lot of arguments like this that people get into about how spells work.
It's magic. It is explicitly violating real-world natural laws. That's what it's for.
pronouns: he/she/they
It does two things to the atmosphere only: It makes it dry and comfortable. Dry: the air is not wet, that is, it is low humidity. Comfortable: the air is temperate. It is neither hot nor cold. Those are the only effects it has on the atmosphere.
It doesn't do anything more than it says.
Dragon-breath: neither a creature, nor an object, nor a spell, so not stopped by LTH
Non-water-vapor non-creature Gas: neither a creature, nor an object, nor a spell, so not stopped by LTH. (Water Vapor or steam would increase the humidity by definition, so would be stopped by making it dry). So for example, smoke would pass through an LTH.
Liquid Water (you cast LTH in the middle of a river, or someone redirects a river at the LTH): neither a creature, nor an object, nor a spell, so not stopped by LTH. Liquid water is not atmosphere, so is not dried.)
The game adheres to a platonic understanding of matter phases. Gas-Liquid-Solid. The rules are written in natural "idiomatic" English, and liquids and gases are not objects in idiomatic English. Only solids are objects.
If a player made this argument at my table, I'd laugh. And then they'd be wrong and we'd move on. Of course 'breathing air' means oxygen. But we don't need to get into the scientific details - the game has a concept of an amount of air only allowing breathing for so long (several relevant magic items come to mind, as does the rules around holding your breath). Air is a gas. If LTH stops gases, it's a bubble with a fixed amount of air that will only allow breathing for so long, by the game's own logic.
It's the people trying to argue gases are objects that are the ones who first resorted to real world science. If we're ignoring science arguments, gases aren't objects.