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"Arcane Lineage Bosses: Full Guide to Victory"

Author : Leo Update : Apr 11,2025

Bosses in Arcane Lineage range from easy targets that even beginners can conquer alone to formidable foes requiring multiple well-coordinated teams to defeat. Each boss presents unique challenges and complex mechanics, demanding strategic planning and patience to overcome effectively. Conquering these bosses yields some of the game's most coveted loot and items, enhancing your gameplay experience significantly. Dive into our comprehensive Arcane Lineage Boss Guide to gear up for these epic encounters.

Arcane Lineage Boss List

King Slime

While King Slime is more of a mini-boss, don't underestimate it; it can still pose a challenge for low-level players. It spawns after 100 Slimes are defeated on the server, appearing near the city where the last Slime fell. A notification on the Quest Board signals the start of the King Slime quest, which has a 30-minute cooldown on the server.

King Slime Location: The King Slime can be found around the city closest to where the last Slime was defeated.

King Slime Fighting Strategy: With 400 HP (600 HP if Corrupted), King Slime has the lowest HP among bosses. It primarily summons additional Slimes and uses AOE poison attacks. Prepare with potions and cleansing abilities to counter these effects. After managing the summoned Slimes, you can defeat King Slime swiftly.

King Slime Drops and Rewards:

  • Drops: Random Tier 1 Equipment, Slime Buckler, Gelat Ring
  • Quest Rewards: Ferrus Skin Potion, Small Health Potion, Essence, Gold

Yar’thul, the Blazing Dragon

Yar’thul is a fire-type boss that unleashes Inferno and Burning effects with most of its attacks. It boasts 1200 HP (1800 HP if Corrupted) and is resistant to fire and physical damage but weak to Hex damage.

Yar’thul Location: Journey deep into the Desert to reach Mount Thul, an active volcano formed by Yar’thul’s intense heat. Navigate through its dark corridors to confront the Blazing Dragon.

Yar’thul Fighting Strategy: Prioritize speed in this battle to avoid being overwhelmed by Yar’thul’s fiery onslaught. At 50% health, it enters a second phase, summoning meteors that apply healing reduction and stun the party. Use Dragon Ring and Pristine Accessories to ease the fight. The Corrupted version gains lifesteal.

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 (if Corrupted)
  • 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 a creature of the Deeproot Canopy, Thorian has transformed into a towering abomination with multiple red eyes and tentacles. It is resistant to most elements but heavily weak to Holy damage.

Thorian Location: Venture into the Cess Grounds and head right to reach the Deeproot Canopy, where Thorian resides.

Thorian Fighting Strategy: With 2600 HP (3900 HP if Corrupted), Thorian employs a mechanic where consecutive attacks of the same type heal it by 150%. Vary your attack types to avoid this. Below 50% health, it unleashes a devastating attack inflicting Plague, Curse, and Hexed with a long cooldown.

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 (if Corrupted)
  • Possible Drops: 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 is now a formidable Raid Boss sealed within a Temporal Jail. With 10,000 HP (15,000 HP if Corrupted), it's a true test of endurance and strategy.

Metrom’s Vessel Location: This boss spawns on a global timer and requires a Void Key obtained from defeating corrupted versions of other bosses. Await the server-wide notification to find its location.

Metrom’s Vessel Fighting Strategy: Metrom’s Vessel has two distinct phases. In the first phase, destroy its black wings by applying status effects and debuffs. In the second phase, manage its wings in Offensive and Defensive modes while dealing with summoned Shadeblades and Shadebringers. Coordination and constant debuff application are crucial for victory.

Metrom’s Vessel Drops and Rewards:

  • Guaranteed Rewards: 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 and Seraphon are elusive and challenging bosses, unlocked by reaching rank 20 in the Cult of Thanasius and Church of Raphion, respectively. Arkhaia has 7000 HP with a damage-over-time mechanic, while Seraphon has 4500 HP. Defeating them offers the chance to start a new character with the powerful Inferion or Sheea races.

And that concludes our Arcane Lineage Boss Guide. For more tips on enhancing your power, explore our complete Arcane Lineage Class Tier List and guide.