In Arcane Lineage, the variety of bosses presents a thrilling challenge for players of all levels. From the relatively easy King Slime to the formidable Metrom’s Vessel, each boss offers unique mechanics that require strategic planning and patience to conquer. Successfully defeating these bosses rewards players with some of the game's best loot and items. Use this comprehensive Arcane Lineage Boss guide to gear up and dive into the action.
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Table of Contents
- Arcane Lineage Boss List
- King Slime
- King Slime Location
- King Slime Fighting Strategy
- King Slime Drops and Rewards
- Yar’thul, the Blazing Dragon
- Yar’thul Location
- Yar’thul Fighting Strategy
- Yar’thul Drops and Rewards
- Thorian, the Rotten
- Thorian Location
- Thorian Fighting Strategy
- Thorian Drops and Rewards
- Metrom’s Vessel
- Metrom’s Vessel Location
- Metrom’s Vessel Fighting Strategy
- Metrom’s Vessel Drops and Rewards
- Arkhaia and Seraphon
- King Slime
Arcane Lineage Boss List
| Boss | Location | Difficulty |
|---|---|---|
| King Slime | Around the City | Easy |
| Yar’thul, the Blazing Dragon | Inside Mount Thul | Normal |
| Thorian, the Rotten | Deep in the Cess Grounds | Hard |
| Metrom’s Vessel | Deeproot Canopy | Very Hard |
| Seraphon | Unlocked by ranking up in the Church of Raphion | Hard |
| Arkhaia | Unlocked by ranking up in the Cult of Thanasius | Very Hard |
King Slime
While the King Slime may not pose a significant threat like other bosses, it's still a challenging encounter for low-level players. Note that defeating this boss does not yield soul points.
King Slime Location
The King Slime spawns after 100 Slimes are defeated on the server. It appears around the city nearest to where the last slime was killed, and a notification on the Quest Board alerts players of the active King Slime quest. The quest involves two steps:
- Find the King Slime
- Kill the King Slime
This quest has a 30-minute global cooldown on the server.
King Slime Fighting Strategy
With only 400 HP (600 HP if Corrupted), the King Slime is the least durable boss in Arcane Lineage. Its main tactic is summoning more Slimes to overwhelm your party, alongside various AOE poison attacks. Prepare with potions and cleansing abilities to counter its poison effects. After dealing with the summoned Slimes, you can defeat the King Slime in just a few turns.
| Attacks | Energy Cost | Effect |
|---|---|---|
| Slime Creation | 1 | Summons a Slime to fight for King Slime. |
| Crush | 0 | King Slime lunges forward, attacking a party member. |
| Poison Eruption | 2 | King Slime throws out a burst of Acid, poisoning your party. This attack cannot be dodged or blocked. |
| Scalding Spray | 3 | King Slime erupts with boiling hot liquid, poisoning your party. This attack cannot be dodged. |
King Slime Drops and Rewards
Defeating the King Slime can yield these drops:
- Random Tier 1 Equipment
- Slime Buckler
- Gelat Ring
Completing the King Slime event from the Quest Board offers these rewards:
- Ferrus Skin Potion
- Small Health Potion
- Essence
- Gold
Yar’thul, the Blazing Dragon
As a fire-type boss, Yar’thul unleashes Fire and Inferno-based attacks that inflict the Inferno and Burning effects on your party. With resistance to fire and physical damage, and a weakness to Hex damage, preparation is key to surviving this encounter.
Yar’thul Location
To confront Yar’thul, journey deep into the Desert to find Mount Thul, an active volcano formed by Yar’thul’s heat. Navigate through its dark corridors to reach the Blazing Dragon.
Yar’thul Fighting Strategy
With 1200 HP (1800 HP if Corrupted), Yar’thul compensates for its lower health with high damage output. Most of its attacks apply Inferno and Burning effects, making this a race against time. At 50% health, Yar’thul enters a second phase, summoning meteors that can stun and reduce healing. Focus on finishing the fight quickly to avoid being overwhelmed. The Dragon Ring and Pristine accessories can make this battle more manageable. Note that the Corrupted version gains lifesteal.
| Attacks | Energy Cost | Effect |
|---|---|---|
| Inferno | 0 | Automatically inflicts Inferno status effect on the party at the start of the battle. This attack cannot be dodged or blocked. |
| Fire Claw | 0 | Yar’thul slashes with fire-imbued claws, dealing light damage. |
| Magma Pillar | 2 | Yar’thul slams the ground, creating a damaging magma pillar for 3 turns. Inflicts 2 stacks of Inferno and 5 stacks of Burn. |
| Blaze Core | 3 | Yar’thul heals by consuming the party's Inferno stacks. |
| Blaze Eruption | 2 | Yar’thul slams the ground, damaging burning targets and applying scaling Inferno and Burning stacks. |
| Magma Beam | 4 | Yar’thul charges a devastating fire beam for 1 turn, then fires it for massive damage. This attack cannot be dodged or blocked. |
| Hellfire | 1 | Yar’thul sends out a wave of fire, damaging the party and applying 9 stacks of Burning. This attack cannot be dodged or blocked. |
| Armageddon | 6 | Below 50% health, Yar’thul summons a meteor, dealing massive damage and applying healing reduction. Can stun and be used multiple times. This attack cannot be dodged or blocked. |
Yar’thul Drops and Rewards
Guaranteed rewards from defeating Yar’thul include:
- Absolute Radiance
- Permafrost Curse
- Wild Impulse
- Heavenly Prayer
- Breath of Fungyir
- Narhana’s Sigil
- Reality Watch
- Shifting Hourglass
- Ring of the Dragon
- The Void Key (from Corrupted Yar’thul)
Possible drops include:
- Dragontooth Blade
- Dragonbone Gauntlets
- Dragonbone Spear
- Dragonflame Shield
- Memory Fragment
- Soul Dust
- Phoenix Tear
- Resplendant Essence
- Lineage Shard
- Skyward Totem
Thorian, the Rotten
Once an animal in the Deeproot Canopy, Thorian has become a corrupted abomination with multiple red eyes and tentacles. It curses all who encounter it and is resistant to most elements but heavily weak to Holy damage.
Thorian Location
Find Thorian in the deepest parts of the Cess Grounds within the Deeproot Canopy. Head to the right upon entering and continue in that direction to encounter this massive enemy.
Thorian Fighting Strategy
With 2,600 HP (3,900 HP if Corrupted), Thorian presents a complex fight due to its mechanics. It heals 150% of damage dealt if hit twice in a row with the same attack type, requiring varied attacks. Thorian is resistant to all damage types except Holy, which deals 135% damage, and slightly weak to fire, offering a 10% damage increase.
Below 50% health, Thorian unleashes a devastating attack, inflicting Plague, Curse, and Hexed with a 15-turn cooldown.
| Attacks | Energy Cost | Effect |
|---|---|---|
| Cursed Wave | 2 | Thorian attacks 3 party members, dealing damage with a chance to inflict Curse. |
| Overflowing Curse | 0 | Starts a minigame; failure inflicts Plague. This attack cannot be dodged or blocked. |
| Cess Breath | 1 | Thorian sends a wave of rotten air, dealing AOE damage and debuffing the party. |
| Warped Crush | 1 | Thorian charges, dealing damage to 3 party members. |
| Blasphemous Obliteration | 5 | Below 50% health, Thorian devastates the party, applying 1 stack of Plague, 3 stacks of Curse, and 1 stack of Hexed. This attack cannot be dodged or blocked. |
| Hexed Burst | 1 | Thorian sends out an AOE wave, damaging the party with a chance to apply random debuffs (1 Hexed or 3 Curse). |
| Plague Rupture | 2 | Thorian applies a random debuff to a party member, then ruptures them for massive damage scaling with debuffs. |
Thorian Drops and Rewards
Guaranteed rewards from defeating Thorian include:
- Absolute Radiance
- Permafrost Curse
- Wild Impulse
- Heavenly Prayer
- Breath of Fungyir
- Stellian Core
- Metrom’s Amulet
- Darksigil
- Ring of Blight
- The Void Key (from Corrupted Thorian)
Possible drops include:
- Blightrock Dagger
- Blightwood Staff
- Memory Fragment
- Soul Dust
- Phoenix Tear
- Resplendant Essence
- Lineage Shard
- Skyward Totem
Metrom’s Vessel
Originally a hero, Metrom’s Vessel now serves as a host for Metrom, sealed in a Temporal Jail to contain its power. Despite the jail's weakening effect, Metrom’s Vessel remains a formidable challenge.
Metrom’s Vessel Location
As a Raid Boss, Metrom’s Vessel spawns on a global timer. You'll need a Void Key, obtainable from defeating corrupted versions of other bosses, to enter the fight. Watch for the server-wide notification announcing its spawn and location.
Metrom’s Vessel Fighting Strategy
With a staggering 10,000 HP (15,000 HP if Corrupted), Metrom’s Vessel is a true test of endurance. Its first phase features black wings that grant significant damage negation. Destroying these wings by applying status effects and debuffs is crucial, but be cautious as fewer wings increase its damage output.
Metrom’s Vessel also summons Shadeblades, which, despite their low 200 HP, deal substantial damage. Aim to defeat them quickly to avoid complications. The longer the first phase lasts, the higher the chance Metrom’s Vessel will use Oblivion, an undodgeable attack dealing 50% max HP damage to the entire party.
In the second phase, after the Temporal Jail shatters, the wings shift between Offensive and Defensive modes. Offensive mode increases damage output and enhances summoned minions, while Defensive mode boosts damage resistance and reflects damage via Thorns Aura. Continue to apply debuffs and status effects to manage the wings effectively. Additionally, failing to dodge attacks triggers a Shadebringer mini-attack.
Phase 1 Attacks
| Attacks | Energy Cost | Effect |
|---|---|---|
| Rendering Slash | 0 | Metrom’s Vessel lunges at a player, dealing damage and applying 3 Weakness stacks. |
| Deathbound | 1 | Metrom’s Vessel applies 3 stacks of Sundered to 2 random players. |
| Eclipse | 1 | Metrom’s Vessel buffs itself. |
| Invoke Shadeblades | 3 | Metrom’s Vessel summons two Shadeblades with 200 HP each. This attack cannot be dodged or blocked. |
| Hexed Rend | 3 | An undodgeable AOE slash that debuffs all players. This attack cannot be dodged or blocked. |
| Oblivion | 5 | Metrom’s Vessel uses ancient magic, dealing 50% of everyone’s HP and inflicting Curse. This attack cannot be dodged or blocked. |
Phase 2 Attacks
| Attacks | Energy Cost | Effect |
|---|---|---|
| Oblivion + Eclipse | 1 | Metrom’s Vessel uses Rendering Slash followed by Hexed Rend. |
| Unyielding Fury | 2 | An AOE debuff that gives all players 3 stacks of Blind and 2 stacks of Hexed. This attack cannot be dodged or blocked. |
| Minishade Bringer | 3 | Metrom’s Vessel shoots 3 Shadebringers. This attack cannot be dodged or blocked. |
| Shadebringer | 1 | Metrom’s Vessel slashes 3 Shadebringers, hitting the whole party and applying 4 stacks of Cursed. This attack cannot be dodged or blocked. |
| Blackout | 2 | Metrom’s Vessel debuffs the whole party. This attack cannot be dodged or blocked. |
Metrom’s Vessel Drops and Rewards
Guaranteed rewards from defeating Metrom’s Vessel include:
- Metrom’s Grasp
- Chaos Orb
- Expedite Anklet
- Echo Shard
- Tempurus Gem
- Arcanium Crystal
Possible drops include:
- Darkblood Staff
- Darkblood Dagger
- Darkblood Spear
- Darkblood Hexer
- Darkblood Sword
- Darkblood Cestus
Arkhaia and Seraphon
Currently, little is known about Arkhaia and Seraphon due to their rarity. Both are challenging bosses with complex mechanics, not recommended for beginners or new players, even in strong parties. They are the final bosses at this stage of development.
To unlock Arkhaia, reach rank 20 in the Cult of Thanasius. Arkhaia has 7000 HP and a damage-over-time mechanic that can be tricky to manage. Defeating Arkhaia allows you to start a new character with the Inferion race, a powerful and rare starting race in Arcane Lineage.
To unlock Seraphon, reach rank 20 in the Church of Raphion. Seraphon has 4500 HP, and defeating it offers the chance to start a new character with the Sheea race, another powerful and rare starting race in Arcane Lineage.
And that concludes our comprehensive Arcane Lineage Boss guide. For those looking to enhance their power, be sure to explore our complete Arcane Lineage Class tier list and guide.
