Wastrilith 5e – Monster’s Guide and Overview for 5e

Found in the waters of the Abyss and other bodies of water contaminated by that plane’s fell influence, wastriliths establish themselves as lords of the deep and rule their dominions with cruelty.

A wastrilith pollutes the waters around it.

Its noxious presence even affects nearby sources of water when the demon travels on land.

The corrupted water, which contains a measure of the demon’s essence, responds to the wastrilith’s commands perhaps hardening to prevent foes from escaping or erupting in a surge that drags victims into its reach.

Large Fiend (Demon), Typically Chaotic Evil

Proficiency Bonus: +5
Armor Class: 18 (natural armor)
Hit Points: 157 (15d10 + 75)
Speed: 30 ft., swim 80 ft.

STR – 19 (+4)
DEX – 18 (+4)
CON – 21 (+5)
INT – 19 (+4)
WIS – 12 (+l)
CHA – 14 (+2)

Saving Throws: Str+9, Con +10

Damage Resistances: cold, fire, lightning; bludgeoning, piercing, and slashing from nonmagical attacks

Damage Immunities: poison

Condition Immunities: poisoned

Senses: darkvision 120 ft., passive Perception 11

Languages: Abyssal, telepathy 120 ft.

Challenge: 13 (10,000 XP)

Amphibious: The wastrilith can breathe air and water.

Corrupt Water: At the start of each of the wastrilith’s turns, exposed water within 30 feet of it is befouled.

Underwater, this effect lightly obscures the area until a current clears it away.

Water in containers remains corrupted until it evaporates.

A creature that consumes this foul water or swims in it must make a DC 18 Constitution saving throw.

On a successful save, the creature is immune to the foul water for 24 hours.

On a failed save, the creature takes 14 (4d6) poison damage and is poisoned for 1 minute.
At the end of this time, the poisoned creature must repeat the saving throw.

On a failure, the creature takes 18 (4d8) poison damage and is poisoned until it finishes a long rest.

If another demon drinks the foul water as an action, it gains 11 (2d10) temporary hit points.

Magic Resistance: The wastrilith has advantage on saving throws against spells and other magical effects.

ACTIONS

Multiattack: The wastrilith makes one Bite attack and two Claw attacks, and it uses Grasping Spout.

Bite: Melee Weapon Attack: +9 to hit, reach 70 ft., one target.
Hit: 30 (4d12 + 4) piercing damage.

Claw: Melee Weapon Attack: +9 to hit, reach 10 ft., one target.

Hit: 18 (4d6 + 4) slashing damage.

Grasping Spout: The wastrilith magically launches a spout of water at one creature it can see within 60 feet of it.

The target must make a DC 17 Strength saving throw, and it has disadvantage if it’s underwater.

On a failed save, it successful save, it takes half as much damage and isn’t pulled.

BONUS ACTIONS

Undertow: If the wastrilith is underwater, it causes all water within 60 feet of it to be difficult terrain for other creatures until the start of its next turn.

Frequently Asked Question of Wastrilith

Wastrilith is an interesting monster, but most people are curious about it, so they usually ask a few questions about it.
Here are the answers:

1. What Does Wastrilith Do In DND?

A wastrilith pollutes the waters around it.
Its noxious presence even affects nearby sources of water when the demon travels on land.

The corrupted water, which contains a measure of the demon’s essence, responds to the wastrilith’s commands perhaps hardening to prevent foes from escaping or erupting in a surge that drags victims into its reach.

2. Can Wastrilith Breathe Air And Water?

Definitely yes:

As per description, The wastrilith can breathe air and water.

3. How Does Wastrilith Work In DND 5e?

A creature that consumes this foul water or swims in it must make a DC 18 Constitution saving throw.

On a successful save, the creature is immune to the foul water for 24 hours.

On a failed save, the creature takes 14 (4d6) poison damage and is poisoned for 1 minute.

At the end of this time, the poisoned creature must repeat the saving throw.

On a failure, the creature takes 18 (4d8) poison damage and is poisoned until it finishes a long rest.

4. Does Wastrilith Uses Undertow?

Yes.

It can uses undertow, if the wastrilith is underwater, it causes all water within 60 feet of it to be difficult terrain for other creatures until the start of its next turn.

5. What Languages Does Wastrilith Used?

Wastrilith mainly abyssal languages are uses and it can be uses telepathy within range is 120 feet.

I hope that you enjoyed this post about the Wastrilith and I hope that it was helpful to you.

Thank you for taking the time to read this post.