Thalassa

Thalassa

LegendaryDraconisSupport

Introduction

Thalassa is a Legendary Draconis hero in AFK Arena. Thalassa's class is Support.

Other Draconis heroes in AFK Arena: Awakened Gwyneth, Begris, Cassius, Draconis Archer, Draconis Warrior, Elthara and 19 more.

Profile

Thalassa carries the title "Abyssal Warden". Thalassa is voiced by 古賀 陽菜 in Japanese.

Background

When the hatchlings turned the reef beach upside down, the elders of the Riptide tribe had only to say, "Thalassa's coming." The little troublemakers who had been running wild in the mud a moment ago would tuck their tails and scramble home in a flash. Thalassa was the youngest Tidewarden the Riptide tribe had seen in centuries, known for her uncannily precise control over the tides. She would blast the sea with chilly breath, freezing the heaving surf into walls of ice whenever an intruder stepped into forbidden waters. Then she would drag the offender by the back of the neck off to the shore before the whole tribe, with a constantly stern face. Behind her back, they called her the Deeptide Banshee. Countless tales followed in her wake. Some said she froze lazy hatchlings in ice coffins in the middle of the night, and sank them into trenches where no light could ever reach. Some said that the entire sea reported to her. Not even a dragon dozing among the corals could escape her notice. A few even claimed to have seen her swimming alone into the dark depths of the ocean trenches. None knew what she sought there. None dared to stop her and find out why, either. Thalassa never bothered to defend herself. Talking was a waste of time. Work was the best response to ridiculous rumors. By contrast, Leviathan, the tribe's official heir, was nothing like her. He could not keep the patrol logs straight, while the scent of roasting fish could lure him and his entire patrol miles from their appointed course. Yet when a storm rolled in, he was always the first to stand between it and his people. For all the trouble he caused, hatchlings tumbled happily across his broad back. The elders had great faith in him and believed the tribe was in capable hands. Even the shyest among all hatchlings felt a little braver about the deep when Leviathan grinned at them. Thalassa bore him no grudge. She simply found her cousin's naivety almost absurd. Long before she came of age, Thalassa had memorized every word of the Code of Sea Patrol. And the more she studied it, the more certain she became of one thing: A wave might cradle a homebound vessel as tenderly as a mother, then wrench a fleet into a lightless abyss where no sun could ever reach. The sea did not promise safety. It never had. Still, her people lived as though it did. Seven days before the Riptide Rite, an accident happened. Thalassa was making her usual patrol along the edge of the forbidden sea when she noticed the tide had come in later than usual. An inch lower than normal, but beneath its surface coiled a chill that was definitely out of place in the season. Another dragon might have dismissed it as strange weather. Thalassa knew these waters too well for that. The sea never went still for no reason. When it held its breath, it was a warning of something far worse. That night, Thalassa issued an order as Tidewarden: The sea was strictly closed. The Riptide Rite was cancelled. However, the Riptide Rite was the biggest event of their year. On the night of the full moon, young dragons would enter the ocean alone and prove to their ancestors that the currents had judged them worthy. Some had spent decades preparing for that very night. Now, with a single decree, Thalassa had taken it from them, which ignited anger across the reefs. Some said she was throwing her authority around. Others accused her of spitting on the tribe's traditions. "The banshee has lost her mind! She wants to destroy the rite!" The reefs did little to muffle the insults. Thalassa heard every word. She ignored them all. Leviathan found her alone by the forbidden sea. "Thalassa, don't let those insults get to you..." He scratched his head, clearly desperate to make the conversation less uncomfortable. "Just think of them as bubbles from a hermit crab." "They mean nothing to me." "Well... You could tell them what's actually going on, " "And watch them scatter in terror without understanding why?" Thalassa interrupted. Leviathan let a heavy sigh, then forced an embarrassed smile. "Talking to you is like crossing the rocks at low tide. Hard to walk away unbruised." Thalassa stared at the sea. Not a ripple showed in her eyes. "I would rather have them fear me until they learn to respect the sea. Their hatred is a lighter burden than their deaths." "Fair enough." Leviathan turned away before pausing. "If that burden ever becomes too heavy, tell me! I will hear you!" "See to your own burdens," she said without turning around. "And on your next patrol, stop allowing the scent of food to guide you." But even Thalassa had underestimated the arrogance of the young. On the third night following her ban, circles spread across the forbidden sea. The dragonling at the head of the group was no stranger to Thalassa's discipline. Tonight, he was determined to prove that the banshee's terrifying warning was a bluff meant to scare children into behaving. If she denied them the Riptide Rite, they would make their own. They swam hard and fast, but with every stroke toward the open depths, the world around them grew stranger. The sea was perfectly still. No swimming fish. The night algae gone dark. The warm current that had always circled the reefs was simply gone. The last hatchling in the line hunched his shoulders, his teeth chattering. "Maybe... we should head back." Then a loud moan was heard from beneath the surface before he could finish. It sounded like a massive creature that had been asleep for at least millennia, twisting in pain in a nightmare. Then, a strong current burst upward from the lightless trench. It split the ocean apart like the jagged spine of an ancient monster thrust through the waves, tearing the moon into silver fragments. Deep below the rifts, the ancient beasts opened their eyes. They were larger, crueler than legend. The maelstrom instantly swallowed the dragonlings and cut off their pleas. The pressure crushed each cry into a string of white bubbles. The tribe on the shore was thrown into panic. They plunged into the water to attempt a rescue, only to be slammed back onto the beach again and again by freezing currents. Leviathan roared and charged straight forward without a second thought, but even he was sent flying. That was not a wave at all; it was an impassable barrier raised by the abyss. Just as despair gripped everyone present, Thalassa arrived. From the moment the first hatchling entered the forbidden sea, her patrol marks throughout the waters had already warned her. The smallest hatchling's side had been torn open by shards of ice, and blood had spread into a horrifying mist. Thalassa bent down and exhaled a breath of frost, sealing the child and the surrounding seawater inside a transparent coffin of ice. The rest of the tribe was horrified. A hatchling inside the murderous ice coffin? Was the Deeptide Banshee treating the lives of her own tribe as a joke? But soon, through the ice, they saw the wound closing and the gentle rise and fall of his chest. The same raging sea that had nearly killed him now rocked him gently to sleep. Thalassa spread her scaled wings. Her massive draconic form blotted out the moonlight. Standing between the hatchlings and the abyssal rifts, she placed layer upon layer of ancient and intricate inscriptions, lighting up the night sky and binding the raging sea in an iron grip. The tribe held its breath as one. They were waiting for the legendary Riptide Roar, said to be able to crack the seabed. But Thalassa did not roar. She sang. It was an old song, so old that even the eldest knew only scraps of it from their ancestors' stories. Her singing seemed fragile against the raging surf, yet it somehow carried a crushing weight, like a compassionate hand soothing the frenzied beating heart of the deep sea. The tide gradually subsided. Gentle singing soothed the ancient beasts back to sleep, and they returned to the boundless darkness. Leviathan rushed in once the towering waves collapsed, pulling the shell-shocked hatchlings to safety one by one. The sea regained peace. Broken scales peeling from Thalassa's wings glowed dimly as they drifted down into the dark below. Only then did the tribe truly see it: Her body was covered in brutal wounds from the rift. Fresh injuries lay over old ones, and the deepest cut ran from the side of her neck all the way to the root of her wing. It was a horrifying sight. Those were not honors won in front of a cheering crowd. Instead, they were proof of countless lonely nights when she dove alone into the lightless trench to mend the fractured barrier and hold back the deep sea's erosion. Every scar represented a crack she had patched with her own body. So no, she had not imposed the ban to throw her weight around. She knew better than anyone else that the abyssal rift was about to give way. The rescued hatchlings collapsed, pressed together in a trembling heap. Their leader forced himself to look up. His lips trembled, but the word "banshee" seemed stuck in his throat. After a long silence, he bowed his head. "Lady Thalassa," he whimpered. Thalassa's expression returned to its familiar coldness. "You entered the forbidden sea and ignored a direct order. According to the regulations, each of you will copy the Code of Sea Patrol thirty times. Hand them to me before low tide tomorrow." Their faces went white all over again. This time, however, no one complained. Thalassa walked away, her ruined wings dragging behind her. A few steps later, she paused. "The healing crystals are behind the reef. Get them yourself. Don't push through it." Leviathan watched from nearby, his eyes slightly red. "See? I told you. She's just hard as a rock on the outside!" The tides rolled on with the same ancient rhythm they always had. Without hesitation, she swam toward the lightless trench again. There were more violent dark currents, older cracks, and a merciless, seemingly endless vigil waiting. The ice coffin melted at dawn. The hatchling rubbed his eyes and climbed out, as though he had simply woken from one long, sweet dream. The wound that should have killed him had disappeared, leaving only a pale mark. Before the tide receded, an orderly row of Riptide dragons lay on the wide reef flat, all of them scribbling furiously. The leader copied until his claws were numb and aching. Only then, in a daze, did he suddenly notice something. The very first line of the thick Code of Sea Patrol read: "Respect the deep, and you may live to return to the nest." He stared at the words for a very long time. Then he bent over the page and copied the line in the neatest handwriting he had ever managed.

Hero

FactionDraconis
ClassSupport, Mage card, Intelligence
DamageMagic
RarityLegendary, gold frame
RolesHeal, Buff
Ascends toAscended 5-star

Skills

4
  • Oceanic MandateUltimate
    Cooldown 8s

    Thalassa activates her Abyssal Sigil, sending it flying above the battlefield. Thalassa transforms into a dragon, then deals Dragonspeak Damage equal to 100% of her Attack Rating to all enemies while pulling all units into the Abyssal Realm for 5s. Applies extra effects on units in the Abyssal Realm: Enemies: Enemy non-Draconis heroes cannot use their Ultimates, while enemy Draconis heroes have their Energy Recovery Rate reduced by 30%. Allies: When an allied hero uses their Ultimate, the Abyssal Sigil above the battlefield will resonate, dealing Dragonspeak Damage equal to 100% of Thalassa's Attack Rating to all enemies. Each resonance will also increase the damage and health loss all allied heroes inflict by 20% while also boosting their Dragonspeak Amplification by 15 (max 5 stacks; effects expire when Abyssal Realm ends).

    • Level 81Each time the Abyssal Sigil resonates, it restores health equal to 30% of Thalassa's max health to all allied heroes. If this healing fails due to a healing prevention effect or because the hero is already at max health, then they gain a shield of equal value instead.
    • Level 161While the Abyssal Realm is active, allied heroes' normal attacks will deal bonus Dragonspeak Damage equal to 100% of Thalassa's Attack Rating.
  • Tidal RestorationSkill
    Cooldown 1.8s · Unlocks at level 11

    Passive: Thalassa no longer uses normal attacks. Instead, she restores health equal to 300% of her Attack Rating to the allied hero with the lowest health percentage, after which a Tidal Orb appears near the hero and flies toward their current attack target, dealing Dragonspeak Damage equal to 150% of the allied hero's Attack Rating. Additionally, for every 1 point of Healing Thalassa has, the Tidal Orb's damage is increased by 1% (up to 90%).

    • Level 21If this healing fails due to a healing prevention effect or because the hero is already at max health, then the Tidal Orb's base damage is increased by 100%.
    • Level 101If the healing target is Draconis, an extra Tidal Orb is created. If the Draconis hero belongs to the Riptide tribe, then their Tidal Orbs deal AoE damage.
    • Level 181Each time Thalassa heals an allied hero, she also recovers 12% of her max health.
  • Returning TideSkill
    Cooldown 10s · Unlocks at level 41

    Thalassa summons a Returning Tide from behind the allied team. Whenever the tide passes an allied unit, it recovers health equal to 400% of Thalassa's Attack Rating. Whenever the tide passes an enemy unit, it deals Dragonspeak Damage equal to 250% of Thalassa's Attack Rating to the enemy while knocking them into the air a certain distance. The higher the target's health, the farther they fly. If the enemy unit is knocked to the edge of the battlefield, it suffers additional Dragonspeak Damage equal to 200% of Thalassa's Attack Rating and is stunned for 3s.

    • Level 121The healing effect on allied units is increased to 500% of Thalassa's Attack Rating, while the base damage to enemy units is increased to 300% of her Attack Rating.
    • Level 201When Returning Tide hits an enemy unit inside a Sunken Prison, it refreshes the prison's health while dealing an extra strike of Dragonspeak Damage equal to 400% of Thalassa's Attack Rating to the enemy unit inside.
    • Engraving 30When Returning Tide affects allied units, it has the following effects based on Thalassa's Healing. For every 1 point of Healing Thalassa has: The damage and health loss inflicted by affected allied heroes is increased by 1% (up to 90%). The damage resist of affected Draconis heroes is increased by 1. The damage and health loss taken by affected boss units is increased by 1% (up to 90%). These effects last 5s.
  • Sunken IncarcerationSkill
    Cooldown 8s · Unlocks at level 61

    Thalassa targets the enemy hero that has dealt the most damage and that is not currently inside a Sunken Prison, trapping them within a Sunken Prison. The prison absorbs 95% of the damage they deal, excluding their normal attacks. Damage dealt by boss units cannot be absorbed by Sunken Prisons. Sunken Prisons inherit 100% of Thalassa's various attributes, and can be attacked by other enemy units. For every 1 point of Healing Thalassa has, Sunken Prisons' Damage Resist is increased by 0.04. Sunken Prisons are immune to all buffs, debuffs, and healing effects. Sunken Prisons can last for up to 6s.

    • Level 141Every 1s, the Sunken Prison deals Dragonspeak Damage equal to 200% of Thalassa's Attack Rating to the trapped target and nearby enemy units.
    • Level 221Enemy units inside a Sunken Prison suffer 30% more damage and health loss. This effect ends 3s after the unit exits the prison.
    • Engraving 60At the start of battle, the enemy hero with the highest current Attack Rating is immediately trapped inside a Sunken Prison.

Signature item

Abyssal Sigil
Shimmering Mirage · up to +50

An ancient sigil held by Tidewardens of the Riptide tribe for generations, inscribed with principles governing the tides and mandates regarding the forbidden sea.

  • UnlockedAt the start of battle and every 3s after, Thalassa will create 1 Shimmering Bubble on the battlefield. Each time a Shimmering Bubble is created, allied heroes gain a max health boost equal to 5% of Thalassa's max health and are healed for the same amount (max health increases up to 40%). When a Returning Tide passes a Shimmering Bubble, the bubble will launch a Tidal Orb at the nearest enemy unit, dealing Dragonspeak Damage equal to 100% of Thalassa's Attack Rating while stunning the unit. Up to 25 Shimmering Bubbles can be active on the battlefield at the same time.
  • +10If any enemy units are affected by Sunken Prison, then a Shimmering Bubble will be created near them every 3s. For every 1 Draconis hero that survives on the battlefield, an extra Shimmering Bubble will be created every 3s.
  • +20Each time an enemy unit is hit by a Tidal Orb, its Dragonspeak Resist will be reduced by 4 (capped at 8 stacks).
  • +30Each time a Shimmering Bubble is triggered to attack, the duration of the Abyssal Realm is increased by 0.2s (triggered up to 30 times). While inside the Abyssal Realm, if an allied Draconis hero cannot have their attributes boosted, they will instead gain a stack of Torrent whenever an attribute-boosting effect is applied on them. Each stack of Torrent increases the damage and health loss they inflict by 10% (capped at 8 stacks).
  • +40Each time Thalassa launches a Tidal Orb, all allied heroes gain an Attack Rating boost of 10% (capped at 8 stacks).

Furniture

  • Tideborn Pact3 pieces

    When Thalassa joins battle, she selects the allied non-Draconis hero with the highest Attack Rating and grants them Tidal Blessing, which causes all of Thalassa's skills to consider that hero Draconis. For every 1 point of Dragonspeak Amplification Thalassa has, the allied hero with Tidal Blessing will deal 1% more damage to enemy units (up to 90% more damage). If all allied heroes are Draconis, then Tidal Blessing is applied to the one with the highest Attack Rating.

  • Tideborn Pact9 pieces

    All damage taken by allied Draconis heroes is recorded and only takes effect after a delay of 4s, when the target's health begins to decline gradually over 10s. While an allied Draconis hero has an active damage record, if they kill or assist in killing an enemy hero, their damage record will be cleared.

Eternal Engravings

3
  • E30Returning Tide: When Returning Tide affects allied units, it has the following effects based on Thalassa's Healing. For every 1 point of Healing Thalassa has: The damage and health loss inflicted by affected allied heroes is increased by 1% (up to 90%). The damage resist of affected Draconis heroes is increased by 1. The damage and health loss taken by affected boss units is increased by 1% (up to 90%). These effects last 5s.Ascended 2-star: Healing +2 · Ascended 3-star: Healing +2
  • E60Sunken Incarceration: At the start of battle, the enemy hero with the highest current Attack Rating is immediately trapped inside a Sunken Prison.Ascended 4-star: Healing +2 · Ascended 5-star: Healing +2
  • E80Endeavor: Within Arena of Heroes, Legends' Challenger Tournament, Legends' Championship, Treasure Scramble, and Heroes of Esperia: Health +13.7%, Healing +6.67

Voice lines

8
  • Battle startThe deep sea never forgives the arrogant.
  • MovingDo not mistake recklessness for courage.
  • VictoryDo not follow Leviathan's example. This is no time to celebrate.
  • UltimateIn the name of Riptide, all tides, fall into place!
  • AttackYou don't know your limits.
  • AttackYour only choice now is to cease your struggle.
  • AttackDon't fall before the tide goes calm.
  • AttackThe tide has returned.

Thalassa

Art

Thalassa key art

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