![[OlhydraPathfinder-Proposed-v1.webp]] # Olhydra _Primordial Princess of Evil Water | [[Elemental Plane of Water]]_ ## Summary The Elemental Princess of Evil Water, a primordial being of immense power who served as the ultimate patron of the [[Cult of the Crushing Wave]]. The cult believed that by summoning her, they could "drown this worthless, corrupted world." [[Gar Shatterkeel]] claimed to be her chosen prophet, receiving visions and commands to recruit followers. The party's intervention prevented her summoning—they disrupted the cult's operations, defeated key leaders like [[Yngukulub]] and Gar Shatterkeel, and destroyed the water nodes before the rituals could be completed. %% ## At a Glance _Never summoned. Fill in if encountered._ ## Personality _Never summoned. Fill in if encountered._ %% <!-- pota-statblock:auto --> ## Stat Block # Olhydra *Huge Elemental, Neutral Evil* **AC** 18 (natural armor) | **HP** 324 (24d12 + 168) | **Speed** 50 ft., swim 100 ft. **CR** 18 (20000 XP) | STR | DEX | CON | INT | WIS | CHA | |:---:|:---:|:---:|:---:|:---:|:---:| | 21 (+5) | 22 (+6) | 24 (+7) | 17 (+3) | 18 (+4) | 23 (+6) | **Saving Throws** Str +11, Con +13, Wis +10 **Damage Resistances** lightning; bludgeoning, piercing, and slashing damage from nonmagical weapons **Damage Immunities** acid, cold, poison **Condition Immunities** charmed, frightened, paralyzed, petrified, poisoned, prone, restrained **Senses** blindsight 120 ft., passive Perception 14 **Languages** Aquan ### Traits _**Empowered Attacks.**_ Olhydra’s slam attacks are treated as magical for the purpose of bypassing resistance and immunity to nonmagical weapons. _**Innate Spellcasting.**_ Olhydra’s innate spellcasting ability is Charisma (spell save DC 20, +12 to hit with spell attacks). She can innately cast the following spells, requiring no material components: At will: wall of ice 3/day: ice storm 1/day: storm of vengeance _**Legendary Resistance (3/Day).**_ If Olhydra fails a saving throw, she can choose to succeed instead. _**Magic Resistance.**_ Olhydra has advantage on saving throws against spells and other magical effects. _**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.**_ Olhydra makes two slam attacks or two water jet attacks. _**Slam.** Melee Weapon Attack:_ +11 to hit, reach 10 ft., one target. _Hit:_ 21 (3d10 + 5) bludgeoning damage, and the target is grappled (escape DC 19). Olhydra can grapple up to four targets. When Olhydra moves, all creatures she is grappling move with her. _**Water Jet.** Ranged Weapon Attack:_ +12 to hit, range 120 ft., one target. _Hit:_ 21 (6d6) bludgeoning damage, and the target is knocked prone if it fails a DC 19 Strength saving throw. _**Summon Elementals (1/Day).**_ Olhydra summons up to three water elementals and loses 30 hit points for each elemental she summons. Summoned elementals have maximum hit points, appear within 100 feet of Olhydra, and disappear if Olhydra is reduced to 0 hit points. ### Legendary Actions Olhydra 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. Olhydra regains spent legendary actions at the start of her turn. **Crush.** One creature that Olhydra is grappling is crushed for 21 (3d10 + 5) bludgeoning damage. **Fling (Costs 2 Actions).** Olhydra releases one creature she is grappling by flinging the creature up to 60 feet away from her, in a direction of her choice. If the flung creature comes into contact with a solid surface, such as a wall or floor, the creature takes 1d6 bludgeoning damage for every 10 feet it was flung. **Water to Acid (Costs 3 Actions).** Olhydra transforms her watery body into acid. This effect lasts until Olhydra’s next turn. Any creature that comes into contact with Olhydra or hits her with a melee attack while standing within 5 feet of her takes 11 (2d10) acid damage. Any creature grappled by Olhydra takes 22 (4d10) acid damage at the start of its turn. *Source: Princes of the Apocalypse.* <!-- /pota-statblock:auto -->