In Arcane Lineage, boss battles range from solo-able encounters for newcomers to epic team-based challenges requiring coordinated strategies and unwavering patience. Each boss presents unique mechanics, demanding careful planning and execution. The rewards, however, are well worth the effort, offering some of the game's most coveted loot and items. This guide will equip you to conquer these formidable foes.
Recommended Videos
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
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 a manageable threat, even for lower-level players. However, it's important to note that this encounter doesn't yield soul points.
King Slime Location
King Slime spawns after 100 Slimes are defeated on the server. It will appear 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 and kill the King Slime. This quest has a 30-minute global server cooldown.
King Slime Fighting Strategy
King Slime boasts 400 HP (600 HP if Corrupted), the lowest of any boss. Its primary attack involves summoning more Slimes, which can overwhelm players if not dealt with swiftly. It also employs AOE poison attacks; therefore, ample potions and cleansing abilities are recommended. Its low health makes the battle relatively straightforward. Focus on eliminating the summoned Slimes before concentrating your attacks on the King Slime itself. Its AOE attacks only inflict poison, not direct damage, providing opportunities for counterattacks.
| 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 King Slime yields these possible 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
This fire-type boss utilizes fire and inferno-based attacks, inflicting Inferno and Burning status effects. Resistance to fire and physical damage, coupled with weakness to Hex damage, defines its combat profile.
Yar’thul Location
Yar’thul resides deep within Mount Thul, an active volcano in the heart of the desert.
Yar’thul Fighting Strategy
Yar’thul possesses 1200 HP (1800 HP if Corrupted) and deals substantial damage. Most attacks inflict Inferno and Burning, making it a race against time. Upon reaching 50% health, it enters a second phase, summoning meteors that stun and reduce healing. The Dragon Ring and Pristine-level accessories significantly ease this battle. The Corrupted version gains lifesteal.
| Attacks | Energy Cost | Effect |
|---|---|---|
| **Inferno** | 0 | Automatically inflicted at the start, causing the Inferno status effect. Undodgeable. |
| **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 | Consuming 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. Undodgeable. |
| **Hellfire** | 1 | AOE fire wave inflicting Burning stacks. Undodgeable. |
| **Armageddon** | 6 | Below 50% health, summons a meteor for massive damage, stun, and healing reduction. Undodgeable. |
Yar’thul Drops and Rewards
Guaranteed rewards from defeating Yar’thul:
- 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, Thorian is now a corrupted abomination resistant to most elements but heavily weak to Holy damage.
Thorian Location
Thorian is located in the Deeproot Canopy within the Cess Grounds.
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. Vary your attack types. It's highly vulnerable to Holy damage (135% damage). Below 50% health, it unleashes a devastating attack inflicting Plague, Curse, and Hexed (15-turn cooldown).
| Attacks | Energy Cost | Effect |
|---|---|---|
| **Cursed Wave** | 2 | Damages 3 party members, chance to inflict Curse. |
| **Overflowing Curse** | 0 | Minigame; failure inflicts Plague. Undodgeable. |
| **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. Undodgeable. |
| **Hexed Burst** | 1 | AOE damage, chance to apply random debuffs. |
| **Plague Rupture** | 2 | Applies a random debuff then deals massive damage scaling with debuffs. |
Thorian Drops and Rewards
Guaranteed rewards from defeating Thorian:
- 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 defeating corrupted bosses) and spawns on a global timer.
Metrom’s Vessel Location
Location announced server-wide upon spawn.
Metrom’s Vessel Fighting Strategy
Metrom’s Vessel has 10,000 HP (15,000 HP if Corrupted). This extremely high HP boss has two phases with distinct mechanics. Phase 1 involves destroying its wings to reduce damage negation, while Phase 2 changes the wing mechanics to Offensive and Defensive modes. Shadeblades are summoned minions that need to be quickly eliminated. Oblivion (50% max HP damage) is a devastating undodgeable attack. Coordination and consistent debuff application are crucial.
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 buff to itself. |
| **Invoke Shadeblades** | 3 | Summons two Shadeblades (200 HP each). Undodgeable. |
| **Hexed Rend** | 3 | AOE slash inflicting debuffs. Undodgeable. |
| **Oblivion** | 5 | Deals 50% of everyone’s HP and inflicts Curse. Undodgeable. |
Phase 2 Attacks
| Attacks | Energy Cost | Effect |
|---|---|---|
| **Oblivion + Eclipse** | 1 | Rendering Slash (P1) followed by Hexed Rend (P1). |
| **Unyielding Fury** | 2 | AOE debuff inflicting Blind and Hexed stacks. Undodgeable. |
| **Minishade Bringer** | 3 | Shoots 3 Shadebringers. Undodgeable. |
| **Shadebringer** | 1 | Slashes 3 Shadebringers inflicting Cursed stacks. Undodgeable. |
| **Blackout** | 2 | Debuffs the whole party. Undodgeable. |
Metrom’s Vessel Drops and Rewards
Guaranteed rewards from defeating Metrom’s Vessel:
- Metrom’s Grasp
- Chaos Orb
- Expedite Anklet
- Echo Shard
- Tempurus Gem
- Arcanium Crystal
Possible drops:
- Darkblood Staff
- Darkblood Dagger
- Darkblood Spear
- Darkblood Hexer
- Darkblood Sword
- Darkblood Cestus
Arkhaia and Seraphon
Arkhaia (7000 HP) and Seraphon (4500 HP) are rare, challenging bosses. Arkhaia is unlocked at rank 20 in the Cult of Thanasius, and defeating her allows choosing a new character with the Inferion race. Seraphon is unlocked at rank 20 in the Church of Raphion, granting the Sheea race upon defeat.
This concludes the Arcane Lineage Boss guide. For further power-ups, consult our Complete Arcane Lineage Class Tier List and guide.
