Questions tagged [underwater]

For questions about underwater environments, an often noteworthy or special-case environment in RPGs that frequently involve special rules or modifications to rules.

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10
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2answers
1k views

Do crossbows and other noted exceptions miss past their long range underwater?

The rules is written as A ranged weapon attack automatically misses a target beyond the weapon’s normal range. Even against a target within normal range, the attack roll has disadvantage unless the ...
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1answer
116 views

The whirlpool application of the Control Water spell leads to several questions regarding creatures caught in it

As written, the whirlpool usage of the control water spell says: Whirlpool. This effect requires a body of water at least 50 feet square and 25 feet deep. You cause a whirlpool to form in the center ...
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2answers
199 views

How does underwater rules work with flying familiars?

I will soon run the Underworld Speculation adventure with my group of players. Two of their characters have flying familiars (an owl and a pseudodragon). Is there something in the rules that states ...
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2answers
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Does drowning count as a condition?

So I know we are going to some kind of underwater place next session. I was wondering if the bard could use Lesser Restoration to "fix" the drowning "condition". That is, if it counts as one.
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1answer
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Can you use a Martial Discipline Stance from Path of War during underwater combat?

Can you use a Martial Discipline Stance from Path of War during underwater combat? Specifically Thrashing Dragon Stance: Outer Sphere Stance - When wielding two weapons, disciple inflicts an ...
22
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4answers
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Is there anything that can create a fire that burns underwater?

Is there any fire-related item or spell in D&D 5e that can create a fire that can burn underwater?
14
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1answer
1k views

Do the Gloves of Swimming and Climbing grant you a swimming speed?

The rules on Underwater Combat (PHB pg. 198) state: When making a melee weapon attack, a creature that doesn't have a swimming speed (either natural or granted by magic) has disadvantage on the ...
6
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1answer
102 views

How does the Battle Dancer Rolling Flurry work underwater?

The Brawler archetype Battle Dancer has the Rolling Flurry feature which states : When a battle dancer uses her brawler’s flurry, she must move 5 feet before each melee attack or combat maneuver. ...
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5answers
984 views

Help with 3D combat

I recently asked this question, in which one of the comments mentioned there might be problems with 3D combat. My campaign will be nearly entirely underwater, in the deep sea where 3 dimensional ...
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2answers
271 views

Underwater Druidic Spellcasting

I've recently started building an underwater campaign, where most of the action will take place underwater. One of my players has brought to my attention the druidic spell list. They start at level 10,...
9
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1answer
354 views

Using Arcane Eye Under Water

I have a player who wants to know if they could use Arcane Eye above and below water (or any other liquids). I initially said yes, however, after reading the spell it says, “A solid barrier blocks ...
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2answers
715 views

Does using a crossbow with the Sharpshooter feat change its range in underwater combat?

The "Underwater Combat" section of the Combat chapter (PHB, p. 198) reads: A ranged weapon attack automatically misses a target beyond the weapon's normal range. Even against a target within normal ...
9
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1answer
807 views

Ruling for Grappling a Creature Underwater While you are on Land?

If a character is on the bank of a river and they want to reach into the water and grapple a creature in the water (assuming that they are within the size limit to be grappled) are there any special ...
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1answer
272 views

Is it possible to cast spells underwater if I am amphibious? [duplicate]

I am playing in a campaign where I am a water domain cleric water genasi. This means I am amphibious, and so I thought that I could cast spells underwater. When I tried to do this, the DM said you can'...
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2answers
4k views

Can you use the Fly spell to move underwater at a speed of 60 feet?

If under the effects of a Fly spell, can you move at a speed of 60 feet underwater?
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3answers
976 views

How powerful is a “Breathe Air” spell?

Land-dwelling druids can figure out a way to use magic in order to breathe underwater (, provided that they are able to cast 3rd-level spells). But what about druids that are already able to breathe ...
6
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1answer
421 views

What effect, if any, do water-creating spells have underwater?

There are a number of spells that produce their effects by conjuring and then manipulating large volumes of water, including Watery Sphere, Tidal Wave, and Tsunami. As far as I can tell, nothing stops ...
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2answers
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Will this series of events work to drown the Tarrasque?

Here's the challenge: I, a level 17 Bard taught by the College of Compulsion (a homebrew subclass), am hired by some random bumpkins to go and get rid of the Tarrasque all by my lonesome, for 5 silver ...
9
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2answers
600 views

Can a bard perform underwater?

We were underwater this past session and ran into an issue with the bard, who is a vocalist, and despite being able to breath underwater via the water breathing spell ran into an issue when we ...
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2answers
3k views

Are there rules for falling in water vs. diving vs. just jumping in for various depths of water?

Just realized that in DMing 5e I have unconsciously used a falling-in-water rule-of-thumb that I inherited from somewhere (maybe 2e or AD&D or maybe even Pathfinder). The ruling I've been using is ...
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2answers
1k views

How do attacks with an underwater target and an attacker on land (and the reverse) work?

The Underwater Combat rules on attacking state: When making a melee weapon attack, a creature that doesn't have a swimming speed (either natural or granted by magic) has disadvantage on the attack ...
35
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3answers
7k views

Is it possible to rest underwater if you can breathe underwater?

I'm looking at the new Warlock eldritch invocations of XGTE, and the invocation Gift of the Depths gained my curiosity. The eldritch invocation Gift of the Depths states that you can breathe ...
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3answers
952 views

How to handle attacking a ship from underwater?

In a campaign I'm running, I have players who want to attack an enemy ship. Their current plan is to use Water Breathing and swim along the bottom of the body of water the ship is in to get under the ...
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1answer
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What happens to lightning spells underwater?

As the old adage goes "water and electricity don't mix" because in real life water has impurities in it that make it super conductible. So what would happen in D&D if, for instance, a sorceress ...
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2answers
297 views

Would a Decanter of Endless Water propel a boat? [closed]

In Pathfinder this magical item was recently purchased by our party member. It says that it can put out of 5 gallons of water per second from a 1ft diameter circle. How would you go about ...
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2answers
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Is your movement penalized underwater if you have a swimming speed but choose not to use it?

Here are the rules on underwater movement: While climbing or swimming, each foot of movement costs 1 extra foot (2 extra feet in difficult terrain), unless a creature has a climbing or swimming ...
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1answer
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What happens if I cast Otiluke's Freezing Sphere while entirely submerged in water?

Otiluke's freezing sphere states: A frigid globe of cold energy streaks from your fingertips to a point of your choice within range, where it explodes in a 60-foot-radius sphere. Each creature ...
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1answer
396 views

Does a character start drowning if stunned underwater?

The title says it all; I'm just having trouble finding a definitive answer. I suspect someone who breathes normally would lose the ability to hold their breath when stunned. Sure, they would breathe ...
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2answers
1k views

What happens when a character puts on a “Ring of Water Walking” while already underwater?

Got into an interesting conversation with a friend about this, and neither of us were quite sure as to what the actual effect of the ring would have on someone if they were already underwater.
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What happens after destroying water with Create or Destroy Water underwater?

The line of the spell in question says: You destroy up to 10 gallons of water in an open container within range. Range is 30 ft. I am on a raft. 20 ft below me (and to the north) is a shark. ...
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3answers
2k views

Overland Flight underwater?

Can you use a fly speed underwater? How does the spell Overland Flight interact with underwater movement?
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1answer
658 views

Invisibility under water

How is invisibility treated underwater? Does the water move around them? Can they be located by displacement? Is there anything that modifies concealment? Does how thick or murky have any effect? What ...
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2answers
5k views

How Do Combat Cantrips Function Under Water?

Underwater combat is never fun but for magic users it can be especially frustrating. Unless a character has Water Breathing or uses Alter Self they may find themselves in a situation where the DM ...
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2answers
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What is the outcome of being under the effects of Freedom of Movement while underwater?

I know you don't take penalties to attack/damage with any type of weapon, but I'm actually looking at movement and the like. Are you able to swim freely, by choice? Do you ignore currents? Do you ...
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1answer
427 views

Can you use Wand of Wonder underwater?

Because you can't speak normally while underwater, you can't cast spells with verbal components. So you also can't activate magic items that require command words. (https://rpg.stackexchange.com/a/...
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2answers
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Can you charge underwater if you have a swim speed?

Can a creature with a swim speed charge underwater? I know some creatures specifically state they can run underwater, etc. If a creature is bestowed a magical swim speed, can it treat water as ...
5
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1answer
381 views

Can I use acrobatics underwater to avoid AoOs?

My swashbuckling warblade might be fighting a dragon underwater. Can I use Acrobatics to avoid AoO while swimming underwater? Would there be a penalty, if allowed at all?
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1answer
110 views

Jump-themed maneuvers underwater

My swashbuckling human warblade just encountered what I presume to be a young dragon of indeterminate color while exploring an underwater cave. He has his trusty rapier on him, and he’s not afraid ...
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4answers
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Can we explore under the sea using Leomund's Tiny Airlock?

Our group is 5th level: one wizard, one barbarian and and one warlock (old_one/tome). We got one ring of swimming only, and desperately need to find a sunken ship under the moonsea. The barb can swim ...
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2answers
244 views

How can I build an Underwater base?

I have a character who needs to hide some things, I could likely use some magical shenanigans but whats the fun in that when I could have a lair! Instead of going with the conventional cave or ...
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3answers
433 views

Does a heavy creature walking underwater require Swim checks?

Is it possible to walk on say the sandy floor of a shallow body of water instead of having to make swim checks? I ask as a DM with a new player starting and playing a warforged with adamantine body (-...
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2answers
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Does throwing a net underwater have disadvantage?

I was looking at the rules for underwater combat, PHB 198, and noticed ...Even against a target within normal range, the attack has disadvantage unless the weapon is a crossbow, a net, or a weapon ...
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2answers
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Can you cast the Produce Flame cantrip underwater?

Can you cast the produce flame cantrip underwater? All I could find on this subject was on p. 198 of the Player's Handbook: "Creatures and objects that are fully immersed in water have resistance to ...
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1answer
329 views

Can I activate the Legacy Weapon 'Flay' Underwater?

Flay is a whip from the book Weapons of Legacy. It has an ability called "Snake Sting (SP)": Snake Sting (Sp): Beginning at 5th level, three times per day, you can snap Flay to use magic missile as ...
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3answers
339 views

Can you take the run action underwater?

I have an underwater encounter coming up soon in my D&D 3.5e game. They will be entering a flooded section of dungeon. Rules say PCs can walk on the bottom, at half normal speed. (DMG, p. 92, or ...
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2answers
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How long can creatures with no swim speed travel in deep water before they die?

After answering this question about how deep can PCs go underwater, I started wondering how long can you keep swimming before you die. Here are the constraints: You can breathe underwater (ex, via ...
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4answers
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Assuming your PCs can breathe underwater with a spell, what is the maximum depth they can go without assistance?

If a PC has a spell or item that allows them to breathe underwater, gives them gills, or whatever other means they might acquire to not drown, what is the maximum depth they could: Descend to before ...
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4answers
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Does Life Bubble preclude the need to add legs to sharks?

In this answer, it is suggested that the spell Life Bubble would allow a shark to survive out of water, and that the 'tolerable living conditions' would include being underwater. Given that the spell ...
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2answers
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What happens when you cast the Fireball spell underwater?

What happens when you cast the fireball spell underwater? And does the water remain? Assume a perfectly spherical pool with a 20 foot radius and hole at the top for you to cast the fireball into the ...
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4answers
5k views

How can characters know which weapons to use underwater?

My 5th Edition party is gearing up to take a short trip underwater. They found a friendly spellcaster to cast Waterbreathing on them and they're going to locate a giant octopus lair. In preparation, I'...