Tsoagoth, The Brine King is the final boss of act 6, located in the Brine King's Reef.
Quest
Defeating him is part of the quest The Brine King.
Strategy
Tsoagoth is a challenging boss to strategize for, as his abilities intentionally remove the option of kiting (running out of damage zones) from the player. This boss acts as a stat check on your build. If you do not have enough lightning resistance and cold resistance, you are highly likely to die from a one-shot by a combination of lightning strikes and orbs of water. In order to deal with this, it is critical to max out your lightning and cold resistances by temporarily equipping a Topaz Ring or Topaz Flask and Sapphire Ring or Sapphire Flask, in addition to having at least 1000 health and appropriate life flasks
Abilities
The stage and abilities change as the fight progresses.
At 100% health
Slam
Tsoagoth raises his claw and whacks the ground, creating a medium-ranged shockwave.
Tidal Rush
Tsoagoth enters a defensive stance for 5 seconds, gaining 80% damage reduction, and damaging nearby enemies. During this period, Tsoagoth is 40% slower, can only melee, and will constantly summon Brine Spawn.
At 75% health
Flood Arena (1)
Upon reaching 75% health, Tsoagoth shrinks the arena with tidal waves. He is untargetable while the stage is shrinking. Tidal waves apply Cold Degen (a cold modifier of Degeneration Aura) on contact. For the duration, lightning will strike the ground, while orbs of water come out of the waves. Even after the effect ends, orbs of water will continue to come out of the waves. The arena returns to a larger size, although smaller than it was originally.
At 50% health
Flood Arena (2)
Upon reaching 50% health, Tsoagoth shrinks the arena again, more than before. This time, however, lightning does not strike the ground, and there are no orbs of water.
Cleave
Tsoagoth is capable of attacking in an arc. It applies the Maim status, reducing movement speed by 30% for 4 seconds.
At 25% health
Flood Arena (3)
Upon reaching 25% health, Tsoagoth shrinks the arena yet again, and more than the previous time. In this final phase of the fight, Tsoagoth will no longe ruse Tidal Rush. Instead of orbs of water, lightning will constantly strike the ground in random places until the end.
Divination cards
The following divination cards can drop from this monster:
Video
Map variants
Nassar, Lion of the Seas in 
Reef MapMap Level: 75
Map Tier: 8
Guild Character: 7Each plank of rotting wood,
each dead sailor,
feeds the island and makes it grow.Travel to this Map by using it in a personal Map Device. Maps can only be used once.
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Version history
| Version
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| 3.0.0 |
Added to the game
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| Mechanics |
- Sin
- The Pantheon
- Pantheon Soul
 Divine VesselUnique Boss deals 10% increased Damage
Unique Boss has 10% increased Attack and Cast Speed
Unique Boss has 10% increased Life
Unique Boss has 20% increased Area of EffectPower is a curious thing.
It can be contained, hidden, locked away,
and yet it always breaks free.Can be used in a personal Map Device, allowing you to capture the Soul of the Map's Boss. The Vessel containing the captured Soul can be retrieved from the Map Device. You must be in the Map when the boss is defeated. - The Fall of Oriath
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Pantheon
Powers |
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| Bosses |
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| Upgrades | | to Brine King |
 Captured Soul of Puruna, the ChallengerThough his mind decayed with each passing wave,
the Brine King stood steadfast in his hatred,
and wore it like a shell, protecting himself
from his failure to sire a worthy heir.Cannot be traded or modifiedA captured Soul. Give to Sin or Right-click to unlock a secondary Pantheon Power. If the secondary Pantheon Power is already unlocked can be used to turn off the secondary Pantheon Power for this character. - Captured Soul of Nassar, Lion of the SeasThe fish-wives of Tsoatha rejoiced loudly as
the Brine King descended into the great abyss,
making merry while his blasphemous offspring
slithered 'neath the icy waters...Cannot be traded or modifiedA captured Soul. Give to Sin or Right-click to unlock a secondary Pantheon Power. If the secondary Pantheon Power is already unlocked can be used to turn off the secondary Pantheon Power for this character.
- Captured Soul of Sumter the TwistedSlumbering in the breach between worlds,
the Brine King dreamt of a day he would rise,
in triumph from the shivering depths and take
back the Kingdom he once so ruthlessly culled.Cannot be traded or modifiedA captured Soul. Give to Sin or Right-click to unlock a secondary Pantheon Power. If the secondary Pantheon Power is already unlocked can be used to turn off the secondary Pantheon Power for this character.
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| | to Arakaali |
- Captured Soul of Maligaro the MutilatorThere is a story held by the ancient Vaal, in which the
beautiful seductress Arakaali strode through towns, stealing
the hearts of men, and turning to ash their lovers' desires.
- "Legends of the Vaal" by Eramir, Scholar at TheopolisCannot be traded or modifiedA captured Soul. Give to Sin or Right-click to unlock a secondary Pantheon Power. If the secondary Pantheon Power is already unlocked can be used to turn off the secondary Pantheon Power for this character.
- Captured Soul of Armala, the WidowWhen the cold was at its strongest, Arakaali came,
and like a farmer leading cattle to the slaughter,
she drove her victims into the outer darkness.
- "Legends of the Vaal" by Eramir, Scholar at TheopolisCannot be traded or modifiedA captured Soul. Give to Sin or Right-click to unlock a secondary Pantheon Power. If the secondary Pantheon Power is already unlocked can be used to turn off the secondary Pantheon Power for this character.
- Captured Soul of The Primal OneRecords of Arakaali's violent reign suggest she kept her citizens
sedated with 'juices of lust' and venoms of the spider. Perhaps her
guise of seductress was in fact her way of farming those 'juices'.
- "Legends of the Vaal" by Eramir, Scholar at TheopolisCannot be traded or modifiedA captured Soul. Give to Sin or Right-click to unlock a secondary Pantheon Power. If the secondary Pantheon Power is already unlocked can be used to turn off the secondary Pantheon Power for this character.
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| | to Solaris |
- Captured Soul of Forest of FlamesThe mud is cracked and dry. The fields now burn beneath the blistering sun.
Even our children are dying in the streets! We've angered Solaris and so
we pay tribute to appease her fiery heart...Cannot be traded or modifiedA captured Soul. Give to Sin or Right-click to unlock a secondary Pantheon Power. If the secondary Pantheon Power is already unlocked can be used to turn off the secondary Pantheon Power for this character.
- Captured Soul of Lord of the Ashen ArrowWhen Solaris is angered, there must always be sacrifice. Our women
have taken to mourning, they drag themselves through ash and glass,
not wanting to give up our youth to the all-consuming flame.Cannot be traded or modifiedA captured Soul. Give to Sin or Right-click to unlock a secondary Pantheon Power. If the secondary Pantheon Power is already unlocked can be used to turn off the secondary Pantheon Power for this character.
- Captured Soul of Jorus, Sky's EdgeTo take from the sun is to invite her wrath, and we've more than warranted her curse.
The granaries were vacant, so we lessened our tribute to the sun thinking it would
save our children, but they will die now regardless.Cannot be traded or modifiedA captured Soul. Give to Sin or Right-click to unlock a secondary Pantheon Power. If the secondary Pantheon Power is already unlocked can be used to turn off the secondary Pantheon Power for this character.
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| | to Lunaris |
- Captured Soul of Sebbert, Crescent's PointOnce beneath a moonlit sky, Lunaris bathed her child in the ocean's tide.
Though the waters were frigid with icy death, the boy was sick and
couldn't be healthy until he was silent, clean and still...Cannot be traded or modifiedA captured Soul. Give to Sin or Right-click to unlock a secondary Pantheon Power. If the secondary Pantheon Power is already unlocked can be used to turn off the secondary Pantheon Power for this character.
- Captured Soul of Captain Clayborne, The AccursedAnd so it was, that Lunaris, in her compulsion to nurture and protect,
killed her son beneath the light of a waning moon. She stood silent, in
trial before her tribe, as her fiery sister fought in vain to defend her...Cannot be traded or modifiedA captured Soul. Give to Sin or Right-click to unlock a secondary Pantheon Power. If the secondary Pantheon Power is already unlocked can be used to turn off the secondary Pantheon Power for this character.
- Captured Soul of It That FellBut Lunaris refused to admit any wrongdoing. She'd saved her child, had she not?
He was safe now, buried beneath the dirt. Conviction gnarled around her fragile mind,
and in her pride she rose to seat a deathless throne.Cannot be traded or modifiedA captured Soul. Give to Sin or Right-click to unlock a secondary Pantheon Power. If the secondary Pantheon Power is already unlocked can be used to turn off the secondary Pantheon Power for this character.
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| | to Minor Gods |
- Tukohama: Captured Soul of Tahsin, WarmakerTukohama stood in the door, blocking the sunlight
from Hikatomanga and his family. The Father of War's
retribution was inevitable, for it is known - man
cannot cheat the gods without consequence...Cannot be traded or modifiedA captured Soul. Give to Sin or Right-click to unlock a secondary Pantheon Power. If the secondary Pantheon Power is already unlocked can be used to turn off the secondary Pantheon Power for this character.
- Abberath: Captured Soul of Renkarr, The Kiln KeeperWhen the demon Goat plays his flute,
And cloven hooves clip-clop your path,
Pray the gods will hold you mute,
And bless the fire on your hearth.Cannot be traded or modifiedA captured Soul. Give to Sin or Right-click to unlock a secondary Pantheon Power. If the secondary Pantheon Power is already unlocked can be used to turn off the secondary Pantheon Power for this character.
- Ryslatha: Captured Soul of Murgeth BogsongRyslatha was flushed with pride as she watched her mindless spawn
mature. Sharpening their mandibles, her children slithered from the hive,
eager to devour all the creatures that frequented the ancient woods.Cannot be traded or modifiedA captured Soul. Give to Sin or Right-click to unlock a secondary Pantheon Power. If the secondary Pantheon Power is already unlocked can be used to turn off the secondary Pantheon Power for this character.
- Ralakesh: Captured Soul of Drek, Apex Hunter"Lock the gates and build the walls!" came the rallying cry,
"Let those of Ralakesh take care of those of Ralakesh!"
- The God Behind The WallCannot be traded or modifiedA captured Soul. Give to Sin or Right-click to unlock a secondary Pantheon Power. If the secondary Pantheon Power is already unlocked can be used to turn off the secondary Pantheon Power for this character.
- Gruthkul: Captured Soul of Erebix, Light's BaneThe earth shakes, moon eclipses black.
Graveyards quake, crops turn to ash,
as the grieving mother weeps.
Oceans boil and wind ravages home.
We feel famine inside our bones,
as the grieving mother, Gruthkul weeps.Cannot be traded or modifiedA captured Soul. Give to Sin or Right-click to unlock a secondary Pantheon Power. If the secondary Pantheon Power is already unlocked can be used to turn off the secondary Pantheon Power for this character.
- Yugul: Captured Soul of SallazzangIn nature, there are many feelings exclusive only to man. But terror is not one.
Terror flourishes in our world, transcending all things. It is the bedrock on
which our great cosmos is formed. I am Yugul and I deign to understand this
mystery, to explore its depths and unlock its secrets...Cannot be traded or modifiedA captured Soul. Give to Sin or Right-click to unlock a secondary Pantheon Power. If the secondary Pantheon Power is already unlocked can be used to turn off the secondary Pantheon Power for this character.
- Shakari: Captured Soul of Terror of the Infinite Drifts"So it's true." Shakari thought, as she took her final breath.
"My father, Sin, wishes me dead. And he has sent his rabid dog to do it..."Cannot be traded or modifiedA captured Soul. Give to Sin or Right-click to unlock a secondary Pantheon Power. If the secondary Pantheon Power is already unlocked can be used to turn off the secondary Pantheon Power for this character.
- Garukhan: Captured Soul of Drought-Maddened RhoaGarukhan wished once more for the skies. If she were to die,
she wanted it to be up there in the clouds. This world had never
been her home. She required greater things. She required adventure.
But die she would, here in the dirt...Cannot be traded or modifiedA captured Soul. Give to Sin or Right-click to unlock a secondary Pantheon Power. If the secondary Pantheon Power is already unlocked can be used to turn off the secondary Pantheon Power for this character.
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