View source for Olhydra (5e)

{{5epointer|Princes of the Apocalypse}}
{{5e Deity
|name=Olhydra
|sorttext=
|title=Princess of Evil Water, Crushing Wave, Dark Tide, Well of Endless Anguish
|type=Elemental Princess, {{SRD5|Otherworldly Patron}}
|gender=Female <!-- Male, Female, Androgenous, None, Unstated, Unknown -->
|of=Seas, lakes, rivers, and great subterranean pools
|align=Neutral Evil
|domain=Tempest
|plane=Elemental Plane of Water
|symbol=
|pantheon=Elemental Evil
|worshipers=Cultists, Pirates, Raiders
|refs=<ref name="pota.218220">{{Cite Pub|Princes of the Apocalypse|pages=218-220}} Licensed: &copy; Wizards of the Coast {{fairuc}}.</ref> <ref name="rly">portfolio - [[User:Rlyehable]]. Licensed: [[CC-BY-SA]].</ref>
}}

In her natural state, Olhydra appears as a huge water elemental. She delights in causing destruction. She is powerful enough to be an {{srd5lc|Otherworldly Patron}} to {{srd5lc|Warlock}}s and a power source to {{srd5lc|Sorcerer}}s. She is worshiped by cults of elemental evil who embrace her for her destructive nature.

===Cults of Olhydra===
* The {{5ed|Cult of the Crushing Wave}}<ref name="pota.205">{{pub|PotA}} p.205</ref>
* The {{5ed|Rip Tide Cult}}<ref name="gos.248">{{Cite Pub|Ghosts of Saltmarsh|pages=248}} Licensed: &copy; Wizards of the Coast {{fairuc}}.</ref>

==As a Creature==
{{5e Monster
|name=Olhydra <!--Creature Name-->
|sorttext= <!--usually blank. text to sort by-->
|refs=<ref name="pota.218220" />
|monsterref= <!--name refered to in text-->
|size=Huge <!--Medium, Large, etc.-->
|type=Elemental <!--Dragon, Humanoid, Outsider, Swarm, etc.-->
|swarm= <!--if swarm, enter size of individual creature of the swarm-->
|subtype=Elemental Prince <!--Elf, Goblinoid, etc.-->
|align=Neutral Evil <!--Lawful Good, Chaotic Evil-->
|ac=18 <!--armor class-->
|acfluff=natural armor
|hp=324
|hd= 
|speed=50 ft., {{srd5lc|Swim}} 100 ft.

|saves={{5eStr}}, {{5eCon}}, {{5eWis}}
|skills=
|damagevulnerabilities=
|damageresistances={{srd5lc|Lightning}}; {{bps}}
|damageimmunity={{srd5lc|Acid}}, {{srd5lc|Cold}}, {{srd5lc|Poison}}
|conditionimmunity={{srd5lc|Charmed}}, {{srd5lc|Frightened}}, {{srd5lc|Paralyzed}}, {{srd5lc|Petrified}}, {{srd5lc|Poisoned}}, {{srd5lc|Prone}}, {{srd5lc|Restrained}}
|senses={{srd5lc|Blindsight}} 120 ft.
|perception=14 <!--Passive-->
|languages={{5elang|Aquan}}
|languagelist=Aquan
|cr=18 <!--Challenge Rating-->
|xp= <!--blank unless less than CR 1/8 or greater than CR 30-->
|canon=true
|pointer=true
|individual=true
|summary=Elemental Princess of Evil Water

|feature1=Empowered Attacks
|flimit1=
|fdesc1=

|feature2=Innate Spellcasting
|flimit2=
|fdesc2=

|feature3=Legendary Resistance
|flimit3=3/Day
|fdesc3={{SRD5trait}} Olhydra has {{srd5lc|Advantage}} on saving throws against spells and other magical effects.

|feature4=Magic Resistance
|flimit4=
|fdesc4={{SRD5trait}} If Olhydra fails a {{srd5lc|Saving Throw}}, she can choose to succeed instead.

|feature5=Water Form
|flimit5=
|fdesc5={{SRD5trait}} Olhydra can enter a hostile {{srd5lc|Creature}}’s space and stop there. She can {{srd5lc|Move}} through a space as narrow as 1 inch wide without squeezing.

|action1=Multiattack
|alimit1=
|adesc1=

|action2=Slam
|alimit2=
|adesc2=''{{SRD5|Melee Weapon Attack}}''

|action3=Water Jet
|alimit3=
|adesc3=''{{SRD5|Ranged Weapon Attack}}''

|action4=Summon Elemental 
|alimit4=1/Day
|adesc4=

|baction1=<!--bonus actions up to 10-->
|blimit1=
|bdesc1=
|reaction1=<!--reactions up to 5-->
|rlimit1=
|rdesc1=

|legend1=Crush
|lgdlimit1=
|lgddesc1=

|legend2=Fling
|lgdlimit2=Costs 2 Actions
|lgddesc2=

|legend3=Water to Acid
|lgdlimit3=Costs 3 Actions
|lgddesc3=

|haslair=true <!--blank, true is has lair-->
}}

{{5e Lair
|monster=Olhydra
|type=Elemental
|refs=<ref name="pota.218220" />
|lairdesc={{SRD5|Elemental Plane of Water}}, bodies of water on the {{SRD5|Material Plane}}
|lairaction1=Grasping Tide.
|lairaction2=Murky Water.
|lairaction3=Freezing Fog.
|lairaction4=
|lairaction5=
|regiondesc=Waters near her lair
|regional1=Violent Downpours.
|regional2=Strong Currents and Tides.
|regional3=Agressive Aquatic Creatures.
|regional4=Water Portals.
|regional5=
|ondeath=If she dies, effects end within 1d10 days.
}}

===Found in Adventures===
{{5e Creature Adventure List|Olhydra}}

==Sources and Notes==
<references />
{{5e Footer|Deity, Elemental|Varied}}
[[Category:5e Otherworldly Patrons]]
Alignment	Neutral Evil +
Author	Princes of the Apocalypse +
CRval	18 +
Canon	true +
Challenge Rating	18 +
Creature Name	Olhydra +
Deific Type	Elemental Princess, Otherworldly Patron +
Domain	Tempest +
Experience Points	20,000 +
Features	Empowered Attacks +, Innate Spellcasting +, Legendary Resistance +, Magic Resistance +, Water Form +, Multiattack +, Slam +, Water Jet +, Summon Elemental +, Crush +, Fling + and Water to Acid +
Gender	Female +
Has Lair	true +
Hit Points	324 +
Individual	true +
Individuals	True +
Legendary Monster	true +
Lineage	Elemental Princess, Otherworldly Patron +
Name	Olhydra +
Pantheon	Elemental Evil +
Plane	Elemental Plane of Water +
Portfolio	Seas +, lakes +, rivers + and and great subterranean pools +
Publication	Princes of the Apocalypse +
Size	Huge +
SortText	Olhydra 5e +
Subtype	Elemental Prince +
Summary	Elemental Princess of Evil Water +
Type	Elemental +
Worshipers	Cultists +, Pirates + and Raiders +