The Abyss Sigil is one of the rarest items in Sailor Piece. It has two important uses in the game.
First, it allows you to summon the Atomic Boss.
Second, it is required to purchase the Atomic Sword, one of the strongest weapons available.
Because of these uses, many players farm Abyss Sigils for hours. The drop rate is extremely low, but the rewards are worth the effort for endgame builds.
What Is an Abyss Sigil?
An Abyss Sigil is a legendary rarity item that acts like a boss-summoning ticket.
You spend these sigils to spawn a powerful boss called the Atomic Boss (CID V2). The boss drops valuable gear, titles, and materials used for late-game progression.
Sigils are also needed to purchase the Atomic Sword (Sailor Piece), which is considered one of the most powerful weapons in the game.
Because both the boss and the sword require many sigils, players usually farm them in large quantities.
Where to Get Abyss Sigils
Abyss Sigils drop from specific enemies in the game.
The main enemies that drop them are Arena Fighters located on Lawless Island (Sailor Piece).
These enemies respawn frequently, which makes the island the best farming location.
You can also obtain sigils from Ninja enemies on Ninja Island (Sailor Piece).
However, Lawless Island is usually preferred because Arena Fighters spawn close together and are easy to farm repeatedly.
Important note:
The drop rate is very low.
Most players need several hours of farming before collecting enough sigils.
Best Preparation Before Farming Abyss Sigils
Farming becomes much easier if your character is prepared.
A strong setup allows you to defeat enemies faster and increase your drop chances.
Unlock Ascension Level 4
Before farming in high-level areas, unlock Ascension Level 4. This significantly improves your stats and survivability.
Without this upgrade, farming Arena Fighters can take much longer.
Redeem Active Game Codes
Redeeming codes often gives helpful rewards such as: stat boosts, rerolls, currency, temporary buffs.
These bonuses can speed up farming sessions.
Increase Your Luck Stat
Luck directly affects drop chances.
Equip titles and gear that increase Luck to slightly improve your chances of getting Abyss Sigils.
Even a small boost can help during long farming sessions.
Use AoE Farming Builds
Area-of-effect attacks allow you to defeat multiple Arena Fighters at once.
This dramatically increases farming speed because enemies spawn close together on Lawless Island.
AoE builds are the most efficient strategy for farming rare drops.
Use Mobility and Burst Damage
When fighting bosses later, mobility abilities are important.
They help you: dodge attacks, reposition quickly, deal burst damage safely.
This becomes especially useful when fighting the Atomic Boss.
Use Private Servers
If possible, farm bosses in private servers.
Public servers often have multiple players attacking the same boss, which can reduce your chance of meeting the damage requirement for rewards.
How to Use Abyss Sigils
There are two main ways to use Abyss Sigils in Sailor Piece.
1. Spawn the Atomic Boss
Abyss Sigils are mainly used to summon the Atomic Boss (CID V2).
To spawn the boss:
- Travel to Lawless Island.
- Go to the center of the island.
- Talk to the Atomic Boss Summoner NPC.
- Select a difficulty level.
Each difficulty requires a different number of sigils.
Normal difficulty
Cost: 1 Abyss Sigil
Medium difficulty
Cost: 2 Abyss Sigils
Hard difficulty
Cost: 3 Abyss Sigils
Extreme difficulty
Cost: 4 Abyss Sigils
Higher difficulty increases the boss’s HP, but it also improves drop chances.
Important Drop Requirement
To receive boss rewards, you must deal at least 10% of the boss’s total HP.
If your damage is lower than that, you will not receive any drops.
Because of this rule, strong builds are very important when farming the Atomic Boss.
Atomic Boss Drops
The Atomic Boss can drop several valuable rewards.
Some of the most important ones include:
Eminence Incarnate Title
This title increases your damage and is highly sought after.
The boss also includes a 150-pity system, meaning you are guaranteed the drop after enough attempts.
Atomic Outfit
The Atomic Outfit is a powerful accessory set.
It provides bonuses such as: increased damage, higher defense, additional damage reduction.
These bonuses make it extremely useful for endgame content.
2. Buy the Atomic Sword
The second major use for Abyss Sigils is purchasing the Atomic Sword.
You can find the sword NPC at the right corner of Lawless Island.
Requirements:
- 80 Abyss Sigils
- additional crafting materials
Because of the high sigil cost, the Atomic Sword is one of the hardest weapons to obtain in the game.
However, its damage potential makes it worth the long grind.
How to Unlock the Atomic F Move
Getting the sword is not the final step.
To unlock its full power, you must complete special mastery quests from the Atomic Master NPC, located at the left side of Lawless Island.
There are three requirements.
Defeat the Atomic Boss 20 Times
You must defeat the boss 20 times on Hard or Extreme difficulty.
This alone requires at least 60 Abyss Sigils.
Obtain the Eminence Clan
The Eminence Clan can be obtained through clan rerolls.
Rerolls can be earned from: enemy drops, boss rewards, redeemable codes.
Reach Floor 51 in the Infinite Tower
You must reach Floor 51 in the Infinite Tower (Sailor Piece) five times.
This requires strong gear and multiple Tower Keys to complete repeated runs.
Full Abyss Sigil Progression Path
Here is the complete progression path from farming sigils to unlocking the Atomic Sword’s full power.
Step-1: Farm Arena Fighters on Lawless Island and Ninja enemies on Ninja Island for Abyss Sigils.
Step-2: Use 1–4 sigils to summon the Atomic Boss.
Step-3: Defeat the boss repeatedly to collect titles, outfit pieces, and materials.
Step-4: Save 80 Abyss Sigils plus additional materials to buy the Atomic Sword.
Step-5: Talk to the Atomic Master NPC and complete the mastery quests.
Step-6: Unlock the Atomic F Move and fully power up the Atomic Sword.
Final Tip
The Abyss Sigil grind can take a long time, but it is one of the most rewarding farming paths in Sailor Piece.
If you combine efficient farming builds, private servers, and high Luck stats, you can collect sigils faster and progress toward the Atomic Sword and Atomic F Move much more efficiently.