Uk'otoa

Uk'otoa is a leviathan imprisoned under the Lucidian Ocean and formerly Fjord's patron. As an NPC, is played by Matthew Mercer.

Appearance
Legend says that Uk'otoa is a large serpent-like creature with three eyes in its head and many eyes along its body. On the altar above Captain Avantika's door aboard the Squall-Eater, it's represented by an ouroboros with nine eyes.

Personality
Uk'otoa is an emotionally manipulative deity with the driving goal of having the three seals holding him captive unlocked. He has succeeded in having Avantika and Fjord each break one seal by giving them magical powers and promising more.

Background
Uk'otoa is a creation of Zehir, the Cloaked Serpent, left to rule the entirety of the Lucidian Ocean as his proxy after Zehir was banished during the Calamity.

The Ki'Nau of the Swavain Islands were granted the blessings of Uk'otoa. Captain Avantika expressed that, with this blessing, "nothing and no one could stand before them." However, the surviving worshipers of the Cloaked Serpent grew jealous, sealing Uk'otoa beneath the depths of the Lucidian Ocean and defacing the temples built in his name.

Fjord's patron contacted him for the first time through a dream. He found himself underwater, facing an enormous yellow eye. He tried to speak to it, but it responded only in single words: "Watching. Potential. Learn. Grow. Provoke. Consume. Reward. Patience." He woke with a start, coughing up seawater, and found that his falchion was missing from its sheath, but could now be summoned by him. Fjord discovered he had bonded with the sword as his warlock pact weapon.

As Fjord fell asleep, he faded into a dream of himself standing in total darkness; in his hand was the Waste Hunter Blade. A large yellow eye appeared in front of him. A voice said "Consume". Fjord opened his mouth and pushed the sword into it. He felt pain but also a strong hunger and continued to push the sword further. After he had swallowed the sword, the voice said "Good". The eye closed. Fjord realized he was underwater and started trying to swim against the current. After a few seconds of struggling, he woke up suddenly. The Waste Hunter Blade was gone. Fjord wiped his mouth and found a little bit of blood. He summoned his pact weapon. Instead of the Waste Hunter Blade, his weapon took the form of his falchion again, but it had a more curved appearance similar to the Waste Hunter Blade.

Fjord heard his patron's voice in his head say "Learn" leading him to dive into a dark pool in the Merrow lair.

After the Mighty Nein defeated the merrow in the merrow lair, Fjord touched a yellow orb found in the chamber. He immdiately had a vision of himself in a different place wearing different clothes in a human body holding the orb in his hand and standing over the body of its previous owner. His right hand in the vision summoned the same falchion Fjord now has. He heard a voice in his head say "Potential". He felt uncontrollably hungry, then pushed the orb into his stomach. It went into him painlessly as a voice said "Consume". The hunger went away. Suddenly feeling exhausted, he fell to his knees. Fjord looked into a nearby pool, and saw Vandran's reflection instead of his own. The voice said "Reward". Fjord came back to his own body looking into the pool where the orb was found, but it was gone. The next time Fjord summoned the falchion it had a yellow eye in the center of the hilt.

The Mighty Nein met Avantika and discovered she was also a follower of Fjord's patron. She told them its identity: Uk'otoa, the Great Leviathan. That night, Fjord had a dream of being under the ocean.

Fjord received another dream from Uk'otoa, in which he saw three glowing lights going towards a tilted tower underneath an archipelago of three islands.

In the lair of Dashilla, the party found the third Cloven Crystal. As Fjord touched it to his chest, his vision went black. He saw the same dark ocean and three yellow eyes he had seen in dreams before. An endless row of teeth smiling at him appeared and the vision was gone.

After placing a Cloven Crystal in the Gravid Archipelago sunken temple, Fjord saw a vision of a coastline with three cites, a jungle, and the final temple to unseal Uk'otoa.

Sleeping outside the city of Asarius, Uk'otoa revealed himself to Fjord, adding the words Wander, and Punish, before crushing him in the dream.

Uk'otoa appeared yet again to Fjord in a dream, this time angrily repeating the word Punish and causing the Half-Orc Warlock to feel the sensation of drowning. When Fjord awoke, he found that Uk'otoa had temporarily taken away his powers. His magic returned later during the day.

Fjord had a dream in which he was surrounded by dark and cold waters and Uk'otoa once again appeared, saying loudly, "Return" and "Release". The yellow eye of Uk'otoa began to tear open as snaking vines pushed out of the center, but The Wildmother called out to him to come to her temporarily-offered sanctuary at the Arbor Exemplar.

The Mighty Nein teleported to Nicodranas from Rosohna and spent one day there. As Fjord stepped into the Teleportation Circle to return to Rosohna, he felt a cold sensation shoot through his head and heard Uk'otoa's voice say "Return".

Fjord dreamed of waking on a beach, and saw above him the moon turn into the eye of Uk'otoa. Tendrils reached out and restrained him, and the familiar voice said, "Don’t. Run. Find. Take. Consume." As the tendrils drew him through a huge mouth, the voice said, "Return. Or consume", and he was crushed within the mouth. He woke up suddenly, and his powers were again gone. He found the falchion and went stealthily to the lava pool, where he held the falchion against his chest, saying, "You need me more than I need you. Give it back." Nothing happened, and he gradually pushed the sword into his chest until he was suffering serious damage. With no response, he pulled the sword out and threw it into the pool, where it sank into the molten rock.

Fjord had a dream of being in a forest. As he was walking around, the forest seemed to expand on endlessly. He decided to summon his sword and try to listen for the Wildmother. Instead of summoning the Star Razor, the Sword of Fathoms appeared in his hand. The dream ended when an assassin stabbed him in the chest, trying to retrieve the Cloven Crystal.

Minions of Uk'otoa attacked the Mighty Nein on their way towards Eiselcross (aboard the Midnight Hammer). With the aid of some kind of magic crystal, they located Caleb's amber necklace, shattered it, and forced the contents to spill out onto the deck of the ship, revealing the Cloven Crystal. Then a new undead Captain Avantika crawled up over the side of the boat and tried to pull Fjord overboard (but did not succeed, as of the end of this episode).

Avantika
Uk'otoa communicated with Avantika through dreams as well. It is implied she had less contact with Uk'otoa than Fjord, saying in that it had been a few years since her last dream. Avantika had a yellow eye similar to the eye on Fjord's falchion in the palm of her right hand. She claimed the eye appeared after she killed the previous owner of the Cloven Crystal.

Uk'otoa granted her the power to Control Water after she brought a Cloven Crystal to its temple on Urukayxl.

Avantika returned in, despite having been executed by the Plank King. She appears to be a type of undead, but as of now, it is unclear if this is linked to some power of Uk'otoa or an outside means.

Fjord
Uk'otoa communicated with Fjord mostly through dreams. Fjord never had had these dreams or the ability to use magic before finding his falchion.. In his dreams, Fjord was often underwater and would see a giant yellow eye. Fjord's attempts to speak to the entity resulted in single word responses or no response at all, hearing the words: "Watching, Potential, Learn, Grow, Provoke, Consume, Reward, Patience, Good, Release, Wander, Punish", and "Return" in various dreams. Some of these dreams had physical side effects when Fjord woke up. Avantika, Sabian, and Vandran have appeared in Fjord's dreams.

Fjord has felt Uk'otoa's presence outside of dreams when a Cloven Crystal was nearby, when he placed a Cloven Crystal in the sunken temple to unlock Uk'otoa, and when teleporting away from Nicodranas after being near the sea for the first time in over a month.

Vandran
Vandran was described by Avantika as being another of the "Chosen" of Uk'otoa. She told Fjord Vandran had a sword similar to Fjord's Sword of Fathoms before the shipwreck caused by Sabian. She also claimed Vandran showed her a ritual to get in contact with Uk'otoa. This implies Vandran had contact with Uk'otoa through dreams as well.

According to one of Fjord's dreams, Vandran absorbed a Cloven Crystal in the same way Fjord did. This implies Vandran was, and possibly still is, a warlock of Uk'otoa. At some point in the past, Vandran was working with Avantika to release Uk'otoa. He changed his mind for unknown reasons, and took his Cloven Crystal with him when he left her. The Mighty Nein discovered Vandran had a Cloven Crystal hidden in his quarters on the Tide's Breath at the time it sank.

Desirat and Quajath
In the Yuan-Ti temple on Urukayxl, the Mighty Nein saw three murals - depicting a giant purple bird with fire-like wings and three eyes of onyx, a gigantic sea serpent emerging from the water, with many small eyes of amber and three large eyes, and a worm-like creature with three eyes of ivory inside its mouth, plowing through the earth.

Abilities

 * Uk'otoa is able to communicate with his followers by gifting them dreams and visions.
 * As a entity of notable power, Uk'otoa is able to gift his followers with the ability to Control Water. He is said to have done this in the past with the Ki'Nau, and more recently has done so to Avantika and Fjord as a reward for using their Cloven Crystals to unlock two of the binds holding him captive.

Notable Items

 * Cloven Crystals - Three orbs that are used as keys to release Uk'otoa. They are to be used in three temples scattered about. Two have currently been deposited in their respective temples located at Urukayxl and the Gravid Archipelago; the third and final one remained in Fjord's possession. After the attack on the Ball-Eater while sailing near Urukayxl on the way to the peace talks, a Greater Restoration spell allowed Fjord to vomit out the remaining crystal, and it was placed in Caleb's Vault of Amber for safekeeping.

Quotations

 * "Watching. Potential. Learn. Grow. Provoke. Consume. Reward. Patience." - Fjord hears the voice of Uk'otoa in his head during a dream.
 * "Watching. Adapt. Reward. Release." Said to Fjord within a vision after he inserts the key into the second temple.
 * "Watching. Return. Reward. Wander. Punish." Said to Fjord in a dream after Fjord ignored Uk'otoa's third temple.
 * "Punish." Said to Fjord before stripping him of his power, after weeks of Fjord ignoring him.

Trivia

 * A recurring gag is the players habit of repeating Uk'otoa's name in hushed whispers when a character speaks it out loud.
 * Uk'otoa's name bears close resemblance to the race of degenerate fishmen, the kuo-toa. Despite the similarity it is currently unknown whether Uk'otoa or its creator the Cloaked Serpent has any connection to these creatures.
 * Matt confirmed in that the reward for putting a Cloven Crystal in place to unseal Uk'otoa is a free Eldritch Invocation. This invocation, nicknamed "Dank Water Powers", gives the power to cast Control Water once per day without expending a spell slot.
 * Matt confirmed in that the three entities pictured in the yuan-ti temple, including Uk'otoa, were creations of the gods that became "pseudo-gods" after being left behind by their creators.