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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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Tsunami spell cast in the air

Let's suppose a spellcaster casts the Tsunami spell 100 feet above the ground. The spell description says that it originates at a point in range (sight) and does not say that it needs to be supported....
Leonardo's user avatar
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4 votes
3 answers
287 views

Easiest item/spell/other for making a Tendriculos aquatic?

Building an a character that uses the Arms & Equipment Guide rules for having a Tendriculos as a mount (basically, raise it from a seed and use alchemy to turn off its digestive acid, then ride in ...
Elliot's user avatar
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9 votes
1 answer
248 views

Do weapons that do both Piercing and another damage type suffer underwater combat penalties?

Some weapons, like Morningstars and Sugliin, do two types of damage at once (Piercing/Bludgeoning and Piercing/Slashing, respectively). How does this interact with underwater combat penalties? ...
Elliot's user avatar
  • 2,670
2 votes
1 answer
269 views

How does Scorn Earth function underwater?

Scorn Earth (Su) At 1st level, an elocater’s feet lift from the ground. From now on, she can float a foot above the ground. Instead of walking she glides along, unconcerned with the hard earth or ...
ninjahX's user avatar
  • 1,276
24 votes
10 answers
5k views

Could a famous object on the floor of the ocean have gone undiscovered for centuries?

In my setting, five meteors fell on the planet. Each meteor contained a very powerful magical gem. Four of those fell on land, and the gems were retrieved rather quickly. The last one fell in an ...
Yotus's user avatar
  • 9,183
6 votes
2 answers
775 views

Can the Broom of Flying move underwater?

More specifically: can I order the Broom of Flying to dive into the sea so a sinking PC (several meters underwater) can grab it, then order it to fly out and back to me, saving the PC? I figured, ...
oliver.c's user avatar
  • 379
5 votes
1 answer
351 views

Does being under water affect Invisibility?

This came up with our game last night, with the players suggesting it would be easier to see a creature invisible under water, and I suggested that an aquatic caster might, know a version of the spell ...
Bucket's user avatar
  • 2,616
9 votes
1 answer
2k views

Can a paralyzed creature hold its breath?

Can a paralyzed creature hold its breath, or continue holding its breath if it is paralyzed while holding its breath. For example, a Chuul grapples and drags an overbold adventurer under water, the ...
C. Ross's user avatar
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-2 votes
1 answer
311 views

Does Thunderclap deal more damage in shallow water or underwater? [closed]

I encounter my character in a big room with statues and shallow water between 3 and 6ft tall
Eduardo Medina's user avatar
10 votes
2 answers
692 views

Is it easy to drown in Call of Cthulhu 7e?

Based on the rules I have read on Call of Cthulhu it seems like drowning in this game is very easy. The skill used to avoid drowning rarely has points put into it. How can I make water less lethal ...
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28 votes
3 answers
5k views

Can a petrified character drown?

At the end of our last gaming session my character was fighting a Gorgon in a pool of chest height water. I had the terrible misfortune of being knocked down and then petrified (turned to stone) Can I ...
Amethyst Wizard's user avatar
7 votes
3 answers
2k views

Would a graviturgy wizard's adjust density feature trivialize kraken fights and water encounters?

It wouldn't work on a CR 23 Kraken (MM 193) per se due to the size restriction, but maybe something like a Juvenile Kraken (GoS 239) from Ghosts of Saltmarsh would be susceptible to it. The wording: ...
KickN's user avatar
  • 449
5 votes
1 answer
209 views

What are the conditions of an underwater environment?

Parallel to What are the conditions of a Zero-G environment?, Underwater environments are mentioned under Environmental Adaptation, but are otherwise undefined. Was this defined in an official book?
Sean Duggan's user avatar
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12 votes
1 answer
1k views

Best way to allow a warrior to use their slashing weapons underwater

Our party needs to go underwater. Our party also includes a warrior who is heavily specialized into a pair of +1 keen gold great scimitars, which deal slashing damage and thus take substantial ...
KRyan's user avatar
  • 353k
18 votes
3 answers
2k views

Are there any special rules governing invisibility underwater?

Are there any special rules for invisibility when underwater? For example, Pathfinder (a different game) has a rule that makes it easier to detect invisible creatures underwater due to the way they ...
Andrendire's user avatar
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4 votes
1 answer
184 views

Can all Pokémon swim?

According to the core rules: Underwater Terrain is any water that a Pokémon or Trainer can be submerged in. You may not move through Underwater Terrain during battle if you do not have a Swim ...
Laurel's user avatar
  • 4,175
13 votes
2 answers
2k views

Can I get a long rest in Leomund's Tiny Hut if I'm underwater and water breathing?

I'm a druid/wizard and our party is trying to do some underwater spelunking. I cast the Water Breathing ritual, so we can all breathe underwater for 24 hours. After a few hours of adventuring we've ...
RustyTheBoyRobot's user avatar
18 votes
4 answers
864 views

How do aquatic races write underwater?

There are lots of situations where underwater races will want to send messages to each other, write in spell books, create maps, etc. Are there any examples out there in D&D lore (any edition, any ...
mb345345's user avatar
  • 379
10 votes
2 answers
3k views

How do the Soulknife's psychic blades function in underwater combat?

Psychic Blades The Soulknife from Tasha's Cauldron of Everything gains the Psychic Blades feature at level 3. These are described as "shimmering blades of psychic energy . . . that you can ...
gto's user avatar
  • 5,276
19 votes
1 answer
4k views

When casting the Control Water spell underwater, does the Part Water option create a cube of air?

The control water spell has the option to separate water and form a trench on a cubic area of up to 100 feet per side: Until the spell ends, you control any freestanding water inside an area you ...
MikeQ's user avatar
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3 votes
1 answer
187 views

How large is the whirlpool when a Nereid uses their Shape Water (Control Water) feature?

The nereid from The Hidden Shrine of Tamoachan has a special feature called "Shape Water" (not to be confused with the shape water cantrip), which does the following: Shape Water. The ...
MikeQ's user avatar
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9 votes
1 answer
1k views

How does fighting underwater increase the encounter difficulty of combat?

I am in the process of designing an encounter in which a party of 8 level 3 players will fight a group of Chuul. The CR calculation shows that 3 Chuul will cause a hard encounter, but I intend that ...
Richard C's user avatar
  • 6,306
0 votes
1 answer
129 views

How does underwater combat work with Soul Knives?

How does underwater combat work with Soul Knives'/Bolts'? Do they get the same penalties as regular weapons under water? Does a Soulbolt's Mind Bolt still have -2 per 5 feet ranged weapon penalties ...
Jhyarelle Silver's user avatar
-3 votes
1 answer
2k views

What is every possible way a PC can breathe underwater?

Currently my group is planning an underwater strike on an underwater city. We are wondering what are all the possible ways we could get to breathe underwater. So far we have found: Cap of ...
A person's user avatar
  • 622
6 votes
2 answers
2k views

Is this encounter in Ghosts of Saltmarsh ridiculously deadly?

In the Ghosts of Saltmarsh appendix A, "Of ships and the sea" one of the pre-created underwater locations (the wreck of the marshal) has the following feature: I'm hoping to run one of the ...
James Riordan's user avatar
6 votes
2 answers
649 views

Does a bronze dragon's wing attack work underwater?

An adult bronze dragon has a lair deep inside of a coastal mountain. To get to where she hides her stuff (and where she is keeping a clutch of eggs warm) an adventuring party needs to swim deep ...
KorvinStarmast's user avatar
5 votes
1 answer
1k views

Storm Kings Thunder Maelstrom Mechanics

Currently running Storm King's Thunder, and my players just got the conch of teleportation. During the next session they will be using it. The module says that you take pressure damage for being at ...
Ryan R's user avatar
  • 53
11 votes
5 answers
4k views

What happens if a part of the ocean is zapped by the Witch Bolt spell?

From what I read, the witch bolt spell (PHB, p. 289) will only hit the target. But will it hit anything else - for example, a creature swimming within 10-15 feet of the strike location? The reason for ...
Random Wizard's user avatar
10 votes
2 answers
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 ...
Cyanic's user avatar
  • 3,812
2 votes
1 answer
3k views

How does the Whirlpool application of the Control Water spell work?

As written, the Whirlpool option 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 ...
K.L.R.'s user avatar
  • 8,383
3 votes
2 answers
2k 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 ...
cdauphin's user avatar
  • 323
10 votes
2 answers
2k views

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.
user60792's user avatar
  • 658
4 votes
1 answer
206 views

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 ...
Jhyarelle Silver's user avatar
22 votes
4 answers
13k views

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?
Deus's user avatar
  • 3,369
14 votes
1 answer
4k 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 ...
Ponggoleechee's user avatar
7 votes
1 answer
245 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. ...
Rophe's user avatar
  • 986
9 votes
5 answers
3k 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 ...
Timi's user avatar
  • 4,321
3 votes
2 answers
1k 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,...
Timi's user avatar
  • 4,321
9 votes
1 answer
948 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 ...
Torgg's user avatar
  • 101
7 votes
2 answers
2k 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 ...
RallozarX's user avatar
  • 5,607
9 votes
1 answer
2k 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 ...
Matthew Perryman's user avatar
1 vote
1 answer
845 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'...
Mstark's user avatar
  • 11
20 votes
2 answers
12k 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?
K.L.R.'s user avatar
  • 8,383
9 votes
3 answers
2k 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 ...
hohenheim's user avatar
  • 6,525
6 votes
1 answer
2k 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 ...
Ryan C. Thompson's user avatar
32 votes
2 answers
7k views

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 ...
Skyking's user avatar
  • 349
9 votes
2 answers
1k 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 ...
TigerDM's user avatar
  • 1,956
21 votes
4 answers
16k 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 ...
Valley Lad's user avatar
  • 7,585
11 votes
2 answers
5k 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 ...
Vylix's user avatar
  • 32.7k
35 votes
3 answers
8k 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 ...
Inferno IV's user avatar
  • 1,495