Key Takeaways
- In Sailor Piece, players farm Phantasm Core by defeating the King of Heroes, also known as Gilgamesh, on Boss Island.
- The drop rate for Phantasm Core is very low, between 0.5% to 0.7%, requiring multiple boss runs to obtain it.
- You must deal at least 10% damage in the boss fight to qualify for rewards, so teamwork is beneficial.
- Phantasm Core is essential for unlocking the King of Heroes Fighting Style and for late-game progression upgrades.
- Use strategies like server hopping and high-damage builds to increase your farming efficiency for Phantasm Core.
Sailor Piece is a popular Roblox experience inspired by the pirate world of One Piece. You need to explore islands, fight enemies and bosses, while gradually becoming more powerful by upgrading your gear.
In Sailor Piece, you will find Phantasm Core as one of the rarest items tied to late-game progression. Farming it takes patience because of its extremely low drop rate. So, here’s a complete guide on how to get Phantasm Core in Sailor Piece.
How To Get Phantasm Core In Sailor Piece

You can obtain Phantasm Core by defeating the King of Heroes boss, also known as Gilgamesh, on Boss Island. This boss is the only source of the item, so you need to repeat fights multiple times to get lucky with the drop.
First, you need to travel to Boss Island using the portal system. After reaching the island, you should interact with the summoning NPC near the spawn crystal. Selecting Gilgamesh will let you spawn the boss based on your available resources.
You need to deal at least 10% damage during the fight to qualify for rewards. The drop rate stays around 0.5% to 0.7%, so multiple runs are required before you see results.
| Step | Details |
|---|---|
| Travel | You need to teleport to Boss Island |
| Summon Boss | You can interact with NPC to spawn Gilgamesh |
| Deal Damage | You must contribute at least 10% damage |
| Repeat Runs | You should farm multiple times due to low drop rate |
How to Use Phantasm Core in Sailor Piece
You will use Phantasm Core mainly for unlocking high-end fighting styles and progression systems. This item becomes essential when you move into late-game builds and want stronger abilities.
The most important use is unlocking the King of Heroes (Gilgamesh) Fighting Style. This build focuses on strong area damage and fast clearing speed, making it one of the best options for farming and combat.
You can also use Phantasm Core for Ascension upgrades and crafting special items like the Babylon Key. Because of these uses, collecting more than one core helps you progress further without delays.
| Usage | Requirement |
|---|---|
| King of Heroes Fighting Style | 1 Phantasm Core + rare materials + currency |
| Ascension Progression | 2 Phantasm Cores + additional items |
| Special Crafting | Used in items like Babylon Key |
Best Tips & Tricks for Farming Phantasm Core
You should avoid farming solo for long periods since the drop rate is very low. Teaming up with other players helps you defeat the boss faster and repeat runs more efficiently.
Using high-damage builds will speed up each fight and ensure you consistently meet the 10% damage requirement. Faster clears mean more attempts, which improves your chances over time.
Server hopping is another useful strategy. You can switch servers after each run to avoid waiting for respawns. This keeps your farming loop active and saves a lot of time.
Frequently Asked Questions (FAQs)
You cannot buy it from shops, since it only drops from the King of Heroes boss.
You will deal with a very low drop rate, usually around 0.5% to 0.7% per boss defeat.
You must deal at least 10% damage to qualify for rewards after defeating the boss.
You should farm it since it is required for powerful fighting styles and advanced progression upgrades.
You will get it only from the King of Heroes boss, also known as Gilgamesh, on Boss Island.
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