Olhydra (5e)

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Princes of the Apocalypse

Deific Summary }
Olhydra Princess of Evil Water, Crushing Wave, Dark Tide, Well of Endless Anguish Type: Elemental Princess, Otherworldly Patron Portfolio: Seas, lakes, rivers, and great subterranean pools Alignment: Neutral Evil Domains: Tempest Plane: Elemental Plane of Water Worshipers: Cultists, Pirates, Raiders Pantheon: Elemental Evil

In her natural state, Olhydra appears as a huge water elemental. She delights in causing destruction. She is powerful enough to be an otherworldly patron to warlocks and a power source to sorcerers. She is worshiped by cults of elemental evil who embrace her for her destructive nature.

Cults of Olhydra

• The Cult of the Crushing Wave
• The Rip Tide Cult

As a Creature

Olhydra (Individual) (pointer)
Huge Elemental (Elemental Princes), Neutral Evil
Armor Class: 18 (natural armor)
Hit Points: 324
Speed: 50 ft., swim 100 ft.
STR DEX CON INT WIS CHA
Saving Throws: Str, Con, Wis
Damage Resistances: lightning; bludgeoning, piercing, and slashing from nonmagical attacks.
Damage Immunity: acid, cold, poison
Condition Immunity: charmed, frightened, paralyzed, petrified, poisoned, prone, restrained
Senses: blindsight 120 ft., passive Perception 14
Languages: Aquan
Challenge: 18 (20,000 xp)Proficiency Bonus (PB): +6
Features Empowered Attacks. Innate Spellcasting. Legendary Resistance (3/Day). Olhydra has advantage on saving throws against spells and other magical effects. Magic Resistance. If Olhydra fails a saving throw, she can choose to succeed instead. Water Form. Olhydra can enter a hostile creature’s space and stop there. She can move through a space as narrow as 1 inch wide without squeezing.  Actions Multiattack. Slam. Melee Weapon Attack Water Jet. Ranged Weapon Attack Summon Elemental (1/Day).  Legendary Actions The elemental can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. The elemental regains spent legendary actions at the start of its turn. Crush. Fling (Costs 2 Actions). Water to Acid (Costs 3 Actions).

Unofficial Description: Elemental Princess of Evil Water

Olhydra's Lair

 Elemental Plane of Water, bodies of water on the Material Plane

Lair Actions

 When fighting inside its lair, an olhydra can use lair actions. On initiative count 20 (losing initiative ties), the elemental takes a lair action to cause one of the following effects; the elemental can’t use the same effect two rounds in a row:

• Grasping Tide.
• Murky Water.
• Freezing Fog.

Regional Effects

 Waters near her lair

• Violent Downpours.
• Strong Currents and Tides.
• Agressive Aquatic Creatures.
• Water Portals.

If she dies, effects end within 1d10 days.

Found in Adventures

• Princes of the Apocalypse

Sources and Notes

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