The latest Lineage Piece update is one of the game’s biggest content drops yet, introducing the incredibly powerful Gilgamesh fighting style alongside the brand-new Observation Haki system. Between the flashy abilities, massive damage output, and difficult mastery grind, Gilgamesh is already shaping up to be one of the strongest additions in the game so far.

But unlocking everything is not exactly simple.

Players will need to complete multiple quests, farm bosses, collect crafting materials, and survive some extremely grind-heavy mastery objectives before Gilgamesh reaches its full potential.

Here is everything you need to know about Observation Haki, unlocking Gilgamesh, and completing the full mastery progression in Lineage Piece.

How To Unlock Observation Haki In Lineage Piece

Before starting the Gilgamesh grind, players should first unlock Observation Haki since it becomes extremely useful during harder boss fights and endgame farming.

Observation Haki Requirements

To begin the questline:

• Go to Jungle Island
• Talk to the Observation Haki NPC
• Reach at least Level 1500

Once you meet the level requirement, the NPC will give you the first challenge.

Step 1: Defeat 40 Bosses

The first objective is simple but time-consuming.

You must:

• Kill 40 bosses total

Most players speed this up by repeatedly farming easier bosses with fast respawn timers.

Step 2: Light Five Hidden Torches

After defeating the bosses, the second part requires players to:

• Light five torches across different islands

Each torch is hidden in a specific location, so players will need to travel across the map to activate all of them.

Once every torch is lit, return to the NPC.

Step 3: Obtain The Observation Haki Book

After completing the torch challenge:

• The NPC rewards you with an Observation Haki Book

Interact with the NPC again to officially unlock:

• Observation Haki

Why Observation Haki Is Important

Observation Haki is extremely valuable for:

• Boss fights
• Late-game grinding
• PvE survivability
• Tracking enemies more efficiently

One nice quality-of-life feature is that players can:

• Toggle Observation Haki on or off through the Settings menu

This makes it much easier to manage visual clutter during combat.

How To Unlock Gilgamesh In Lineage Piece

After unlocking Observation Haki, players can begin the much larger Gilgamesh progression.

Where Is The Gilgamesh NPC?

To begin unlocking Gilgamesh:

• Head to Legends Arena

Inside the area, players will find:

• The Gilgamesh Seller NPC

The NPC shows all required materials needed to obtain Gilgamesh.

How To Spawn The Gilgamesh Boss

Most of the required materials come from:

• The Gilgamesh Boss

However, summoning the boss requires a special item called:

• Holy Grail

How To Get Holy Grail

To craft the Holy Grail:

• Talk to the nearby crafting NPC

The recipe requires:

• Golden Dust

How To Get Golden Dust

Golden Dust drops from:

• All mobs in the game

However, the drop rate is fairly low, so expect some grinding before crafting multiple Holy Grails.

Once crafted:

• Use the Holy Grail to summon the Gilgamesh Boss

Is Gilgamesh Worth Unlocking?

Absolutely.

Gilgamesh currently has:

• Extremely high damage
• Clean animations
• Strong AoE pressure
• Powerful combo potential
• Excellent PvE performance

The update clearly focused heavily on making the moveset feel flashy and satisfying, and many players already consider it one of the coolest fighting styles in Lineage Piece.

Gilgamesh Mastery Guide

Unlocking Gilgamesh is only the beginning.

The real grind starts with:

• Gilgamesh Mastery

Players can find the Mastery NPC at the back of the same island.

Full Gilgamesh Mastery Requirements

The mastery chain contains multiple difficult objectives.

Quest 1

• Deal 850 million damage using Gilgamesh

Quest 2

• Obtain the Mythical Demigod Race

Quest 3

• Defeat Shanks Boss 50 times

Quest 4

• Defeat Mihawk Boss 50 times

Quest 5

• Defeat Ichigo Bankai Boss 35 times

Quest 6

• Defeat Saber Boss 25 times

Quest 7

• Defeat Sung Jin-Woo Boss 2 times

Quest 8

• Defeat Rimuru Boss 1 time

Quest 9

• Defeat Aizen Boss 2 times

Final Quest

• Defeat 10 Gilgamesh Bosses on Hard or Extreme difficulty

Gilgamesh Mastery Is Extremely Grind Heavy

Compared to many older Lineage Piece fighting styles, Gilgamesh mastery is significantly more demanding.

The hardest parts are usually:

• Massive boss kill counts
• Farming difficult endgame bosses
• Hard/Extreme Gilgamesh clears
• Dealing 850 million total damage

This mastery is clearly designed as long-term progression content.

Pay-To-Win Shortcut

There is currently one shortcut available.

Players who purchase the related Game Pass can:

• Instantly unlock Gilgamesh mastery

This skips the entire mastery grind.

Free-to-play players will still need to complete all quests manually.The newest Lineage Piece update delivered a huge amount of content, but Gilgamesh easily steals the spotlight.

Between the visually impressive abilities, incredibly strong damage output, and massive mastery progression, Gilgamesh already feels like one of the game’s most powerful and rewarding unlocks.

The grind is definitely intense, especially for free-to-play players, but players willing to put in the time will end up with one of the strongest fighting styles currently available in Lineage Piece.