Complete Arcane Lineage Boss Guide – How to Beat Them All
From solo-able pushovers to multi-team challenges, *Arcane Lineage*'s bosses offer a diverse range of combat encounters. Each boss boasts unique mechanics demanding strategic thinking and patience for successful conquest. Victory rewards players with some of the game's most coveted loot and items. This guide will prepare you for the ultimate boss battles.
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Table of Contents
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 |
| **Mettrom’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 technically a boss, King Slime is more of a mini-boss, posing minimal threat to experienced players. However, lower-level players should proceed with caution. Note: Soul points cannot be obtained from this boss.
King Slime Location
King Slime spawns after 100 Slimes are killed on the server. It appears near the city closest to the last slain slime's location. A notice on the Quest Board announces the King Slime quest, which consists of two steps: Find King Slime; Kill King Slime. This quest has a 30-minute global server cooldown.
King Slime Fighting Strategy
King Slime has 400 HP (600 HP if Corrupted), the lowest of any boss. Its primary attack involves summoning additional Slimes, which can overwhelm players if not dealt with promptly. It also uses AOE poison attacks, so potions and cleansing abilities are recommended. Its low health makes the battle relatively straightforward. After eliminating summoned Slimes, King Slime can be defeated quickly. Its AOE attacks only inflict poison, not direct damage, allowing for uninterrupted attacks.
| 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
Possible drops from King Slime: Random Tier 1 Equipment, Slime Buckler, Gelat Ring. Quest Board rewards: Ferrus Skin, Potion, Small Health Potion, Essence, Gold.
Yar’thul, the Blazing Dragon
A fire-type boss, Yar’thul utilizes fire and inferno-based attacks. Most attacks inflict Inferno and Burning, making the fight challenging without proper preparation. It resists fire and physical damage but is weak to Hex damage.
Yar’thul Location
Yar’thul resides deep within the desert, inside Mount Thul, an active volcano. Navigate the volcano's dark corridors to reach the Blazing Dragon.
Yar’thul Fighting Strategy
Yar’thul has 1200 HP (1800 HP if Corrupted). Its high damage output makes this a race against time. Below 50% health, it enters a second phase, summoning meteors that stun and inflict healing reduction. The Dragon Ring and Pristine-level accessories are highly recommended. The Corrupted version gains lifesteal.
| Attacks | Energy Cost | Effect |
|---|---|---|
| **Inferno** | 0 | Automatically inflicted at the start, applying the Inferno status effect. Cannot be dodged or blocked. |
| **Fire Claw** | 0 | Yar’thul slashes with fire-imbued claws, dealing light damage. |
| **Magma Pillar** | 2 | Creates a magma pillar inflicting damage and Inferno/Burn stacks. Lasts 3 turns. |
| **Blaze Core** | 3 | Consumes Inferno stacks to heal. |
| **Blaze Eruption** | 2 | Damages burning targets and applies Inferno/Burning stacks. |
| **Magma Beam** | 4 | Charges a devastating beam for 1 turn, then fires for massive damage. Cannot be dodged or blocked. |
| **Hellfire** | 1 | Deals light AOE damage and applies Burning stacks. Cannot be dodged or blocked. |
| **Armageddon** | 6 | Below 50% health, summons a meteor inflicting massive damage, stun, and healing reduction. Cannot be dodged or blocked. |
Yar’thul Drops and Rewards
Guaranteed rewards: 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 (Corrupted Yar’thul). Possible drops: 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 is now a corrupted abomination. It curses anything it touches and resists most elements, but is heavily weak to Holy damage.
Thorian Location
Thorian is located in the Deeproot Canopy within the Cess Grounds. Head right upon entering the Cess Grounds to find it.
Thorian Fighting Strategy
Thorian has 2600 HP (3900 HP if Corrupted). A key mechanic involves its passive negation: attacking twice with the same type heals it. Attacks must vary in type. It resists most damage types except Holy (135% damage) and is slightly weak to fire. Below 50% health, it unleashes a devastating attack inflicting Plague, Curse, and Hexed (15-turn cooldown).
| Attacks | Energy Cost | Effect |
|---|---|---|
| **Cursed Wave** | 2 | Attacks 3 party members, inflicting Curse. |
| **Overflowing Curse** | 0 | Minigame; failure inflicts Plague. Cannot be dodged or blocked. |
| **Cess Breath** | 1 | AOE damage and debuffs. |
| **Warped Crush** | 1 | Damages 3 party members. |
| **Blasphemous Obliteration** | 5 | Below 50% health, inflicts Plague, Curse, and Hexed. Cannot be dodged or blocked. |
| **Hexed Burst** | 1 | AOE damage and random debuffs. |
| **Plague Rupture** | 2 | Inflicts a random debuff, then massive damage based on debuff count. |
Thorian Drops and Rewards
Guaranteed rewards: Absolute Radiance, Permafrost Curse, Wild Impulse, Heavenly Prayer, Breath of Fungyir, Stellian Core, Metrom’s Amulet, Darksigil, Ring of Blight, The Void Key (Corrupted Thorian). Possible drops: Blightrock Dagger, Blightwood Staff, Memory Fragment, Soul Dust, Phoenix Tear, Resplendant Essence, Lineage Shard, Skyward Totem.
Metrom’s Vessel
Metrom’s Vessel, a Raid Boss, requires a Void Key (obtained from corrupted bosses) and spawns on a global timer. It's characterized by extremely high HP and damage negation.
Metrom’s Vessel Location
Spawns on a global timer after obtaining a Void Key. Location announced server-wide.
Metrom’s Vessel Fighting Strategy
Metrom’s Vessel has 10,000 HP (15,000 HP if Corrupted). This battle is a prolonged fight requiring significant coordination. It has two phases with unique wing mechanics impacting damage negation and offense/defense. The boss summons Shadeblades, which should be eliminated quickly. In phase 2, the boss's wings shift between offensive and defensive modes, impacting damage dealt and received. Efficient play requires consistent debuff application and damage mitigation.
Phase 1 Attacks
| Attacks | Energy Cost | Effect |
|---|---|---|
| **Rendering Slash** | 0 | Damages and applies Weakness stacks. |
| **Deathbound** | 1 | Applies Sundered stacks to 2 random players. |
| **Eclipse** | 1 | Applies a self-buff. |
| **Invoke Shadeblades** | 3 | Summons two Shadeblades (200 HP each). Cannot be dodged or blocked. |
| **Hexed Rend** | 3 | AOE debuff. Cannot be dodged or blocked. |
| **Oblivion** | 5 | Deals 50% of everyone’s HP and inflicts Curse. Cannot be dodged or blocked. |
Phase 2 Attacks
| Attacks | Energy Cost | Effect |
|---|
