Arcane Lineage Boss Guide: Strategies to Defeat All

Author : Logan Oct 19,2025

Bosses in Arcane Lineage range from being accessible enough for new players to tackle solo, to extremely challenging encounters that demand coordinated teams and advanced strategies. Each boss presents a unique set of mechanics, testing your adaptability, combat awareness, and party composition. Victory over these formidable foes rewards players with some of the most powerful loot and rare items in the game. To help you conquer them all, here’s our comprehensive Arcane Lineage Boss Guide, packed with strategies, locations, and rewards.


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Table of Contents


Arcane Lineage Boss List

BossLocationDifficulty
**King Slime**Around the CityEasy
**Yar’thul, the Blazing Dragon**Inside Mount ThulNormal
**Thorian, the Rotten**Deep in the Cess GroundsHard
**Metrom’s Vessel**Deeproot CanopyVery Hard
**Seraphon**Unlocked by ranking up in the Church of RaphionHard
**Arkhaia**Unlocked by ranking up in the Cult of ThanasiusVery Hard

King Slime