40

The earth elemental cannot take others with it using Earth Glide. This question is actually specifically answered by Jeremy Crawford in Sage Advice! (page 18) Can an earth elemental grapple with a creature and then pull it underground and leave it there to die? No. An earth elemental’s Earth Glide is meant to apply to itself only. The elemental ...


37

Absolutely The suffocation rules are applicable and clear here, however, you might have to check the errata to get them all. They are as follows: A creature can hold its breath for a number of minutes equal to 1 + its Constitution modifier (minimum of 30 seconds). When a creature runs out of breath, it can survive for a number of rounds equal to its ...


37

Suffocating is hard Page 183 of the PHB describes what it takes to suffocate: A creature can hold its breath for a number of minutes equal to 1+ its Constitution modifier (minimum of 30 seconds.) When a creature runs out of breath, it can survive for a number of rounds equal to its Constitution modifier (minimum of 1 round). At the start of its next ...


27

In my PHB the full suffocation rule is (emphasis mine): A creature can hold its breath for a number of minutes equal to 1 + its Constitution modifier (minimum of 30 seconds). When a creature runs out of breath or is choking, it can survive for a number of rounds equal to its Constitution modifier (minimum 1 round). At the start of its next turn,...


21

There are 10 minutes of air, regardless of whether the flap is open or not. Bag of Holding (DMG p153-154) ... Breathing creatures inside the bag can survive up to a number of minutes equal to 10 divided by the number of creatures (minimum 1 minute), after which time they begin to suffocate. ... Magic items do exactly what they say in their ...


21

Both require you to be submersed in water to work. Now, if you were to fill the Bag of Holding with water first ... I'd say the Manta Ray cloak still doesn't work infinitely, because there's only so much oxygen in the water you can breathe. The Cap however creates a bubble of air around your head, and doesn't insinuate in any way that the oxygen is taken ...


20

Check out the Suffocating rules The rules on suffocating can be found in chapter 8 of the PHB, or just in the basic rules such as on D&DBeyond: A creature can hold its breath for a number of minutes equal to 1 + its Constitution modifier (minimum of 30 seconds). When a creature runs out of breath or is choking, it can survive for a number of ...


19

It's up to the DM There are no rules about that, so [un]fortunately it is up to the DM to decide what happens. And that's a good thing! Allowing the DM to craft their story, environment, and events are what roleplaying is all about. You can set the stage for what happens and how dangerous it is. That freedom is a feature, not a bug :) When deciding, I ...


18

Death Saves as normal. First of all, it's not getting water in one's lungs that's inherently deadly: it's that we can't extract oxygen from that water, and so we die of lack of oxygen.1 In 5e this is already modeled by rounds equal to its Constitution modifier (minimum of 1 round). This mechanic will work any time your character is deprived of oxygen, ...


18

Most of your constraints are solved with the updated Mystic class With the March 3rd Unearthed Arcana Mystic class, you can, among other features, focus on one psionic discipline to gain a passive benefit. The Adaptive Body discipline says the following: While focused on this discipline, you don’t need to eat, breathe, or sleep. To ...


18

You're correct -- there are no real rules about this, so it's up to the DM, but if you want some additional guidance: I'd suggest that if you think there's a moment between realizing what's happening and becoming unable to breathe, allow a saving throw (probably Dexterity) to grab a breath and hold it before the condition that prevents breathing is in place....


17

You don't need to make any special note in a creature's writeup unless you want to override the normal rules for how long a creature can hold its breath, or if it should have a special note of what it can do. Those rules for suffocation are on page 183 of the PHB. They refer to a creature's Constitution score, so they apply seamlessly to monsters as well as ...


17

He could use a planar gate to the plane of air to get air into his tower - that might be a security breach though. He might however just do a trick used in Sci Fi: have an air refreshing system in the shape of a garden. This does need the wizard Bob to make some sort of indoor sun (a keystone with a permanent or semi permanent light spell? Possibly ...


17

Play a Warforged from the 5e Unearthed Arcana Eberron article. So long as you are not trying to create a character for the Adventurer's League (all UA article material is not legal in the League) you should not have any issues creating a Warforged PC. WarForged have the Living Construct Racial Trait: Living Construct. Even though you were constructed, ...


17

The rules for holding your breath are on page 183 of the PHB. A creature can hold its breath for a number of minutes equal to 1 + its Constitution modifier (minimum of 30 seconds). The easiest way to extend this is to use a Bottled Breath, from Princes of the Apocalypse. This will let you hold your breath for an ...


16

There is a magic item that will permit breathing in such an environment: Necklace of Adaptation (SRD 5.1, p. 231) Wondrous item, uncommon (requires attunement) While wearing this necklace, you can breathe normally in any environment, and you have advantage on saving throws made against harmful gases and vapors (such as cloudkill and stinking cloud ...


14

It can be quite deadly but not really to higher Constitution creatures Do note, the character is only making a couple of saves before falling unconscious and dying with a state that prevents stabilization (guaranteeing death eventually in most cases): [The suffocating creature] can't regain hit points or be stabilized until it can breathe again. ...


12

What you're really asking is if air flows freely across the dimensional portal that is the bag's mouth. Sounds like it's up to DM interpretation, but the rules as written seem to suggest that air does NOT flow freely. Here are related questions that might help you (or your DM) decide: Do objects have to be placed in the bag by an intelligent agent (e.g. a ...


11

Theoretically Yes, but only works for negative con mod Though it doesn't explicitly state it I would consider "engulfed by water" to be equivalent to being underwater. Thus triggering the suffocating rules. Suffocating: A creature can hold its breath for a number of minutes equal to 1 + its Constitution modifier (minimum of 30 seconds). However for ...


11

Unless the particular construct is described as not needing air - it needs air In the Monster Manual p.6 it says: Certain spells, magic items, class features, and other effects in the game interact in special ways with creatures of a particular type. However, that is a feature of the particular "spells, magic items, class features, and other effects"...


10

The simplest way is through Life 3 (Alter Self), changing the way the mage's lungs take in air, or through Matter 2, turning the carbon dioxide exhaled back into oxygen.


10

I see where this is confusing, but I think that the first part of the Rocktopus' is probably the most important to note given the exact phrasing of your question. This creature is a giant octopus that has evolved to live and thrive on land Since it says that the Rocktopus has evolved to not just live, but thrive, we can assume that the answer to the ...


9

Yes, rationally, if you leave the bag open (or give the guy inside a snorkel to stick out of the opening and breathe), he won't suffocate. There's no rule that says the game must ignore basic sense in favor of irrational interpretations of the rules.


9

The description of Wild Shape states: You retain the benefit of any features from your class, race, or other source and can use them if the new form is physically capable of doing so. However, you can't use any of your special senses, such as darkvision, unless your new form also has that sense. Presumably any beast you can wild shape into would also be ...


9

Some ways to survive to being buried alive could imply some effects of (including the examples in @Jadasc's answer) Time 3 / Life 3 to enter in state of suspension (How do you do that, page 113). Time 3 / Correspondence 4: Bind a location (the coffin) into stasis (ibid.). Correspondence 3: Teleport outside the burial site (How do you do that, page 77). ...


9

Holding your breath may not be a useful strategy against poison @NathanS's answer covers the suffocation rules that seem very applicable to this situation, but I wanted to cover whether holding your breath is an effective strategy. Your example of the golem In your question, you state: party is fighting against some creature with poison immunity, like ...


8

No Official Rules Exist, however... The answer is probably "No." While D&D Science! doesn't exist in the same way that Real World Science! exists, some things inherently have to stay the same in order for there to be any basis in reality for players to find a foothold in the game. For example, the maximum time you can hold your breath in D&D ...


8

The rules for suffocation are: A creature can hold its breath for a number of minutes equal to 1 + its Constitution modifier (minimum of 30 seconds). When a creature runs out of breath or is choking, it can survive for a number of rounds equal to its Constitution modifier (minimum of 1 round). At the start of its next turn, it drops to 0 Hit Points ...


8

It should probably be a 3rd level spell There aren't really any good guidelines for this. Spell effects are normally the reference frame for other effects and custom spells and it is not very clear what kind of "empowerment" this is. The best analysis we can do is for what the spell effectively does, which is allowing access to a area across the water-air ...


8

Air breathing is a 3rd-level transmutation for clerics, druids, sorcerers, and wizards that lasts 2 hours per level (e.g 10 hours at the minimum caster level 5th) and allows a creature that normally breathes water to instead breathe air (it is exactly the opposite of water breathing). It’s printed in several books: Champions of Ruin, Savage Species, ...


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