- The Phantasm Core can only drop from defeating the King of Heroes boss in Sailor Piece.
- Farming the boss after teaming up with enemies can help in finding the item fast.
- This item will later help in unlocking the King of Heroes fighting style.
Grinding for the rarest items in Sailor Piece can easily drain you out; however, some of these are highly rewarding and can unlock better upgrades for your character. Among these is the Phantasm Core, a mythical item that can unlock one of the highest damage-dealing fighting styles in Sailor Piece. So, check this guide to learn how to unlock the Phantasm Core in Sailor Piece and where you can use it.
How to Obtain Phantasm Core in Sailor Piece
The Phantasm Core can only be obtained from defeating the King of Heroes (Gilgamesh) boss in Sailor Piece. This is the only way to get the item; however, the drop rate is as low as 0.5-0.75%. Hence, it will take a long time and multiple raids against the boss to get the item. That said, follow the steps below to get the Phantasm Core in Sailor Piece:
- Use the nearby portal on your island to head over to the Boss Island.
- Right in front of the portal, you’ll find the Boss Summoner NPC. Interact with it to open a pop-up window.
- Scroll down, select the difficulty level for the King of Heroes boss, and click on the Spawn button.
- To summon the King of Heroes, you would need to provide 1x Divine Grail, 500,000 money, and 500 gems.
- Now, all you need to do is fight the boss, deal damage equal to or more than 10% of its health to qualify for the drops.


Tips and Tricks to Farm Sailor Piece Phantasm Core Quickly
Since the drop rate of the Phantasm Core is so low, it will surely take more than a couple of raids to get the item. So, follow the essential tips below to farm the Sailor Piece Phantasm Core quickly.
- The Sailor Piece boss raids are designed in such a way that the more damage you deal, the better rewards you are qualified for. So, focus on using a powerful damage-dealing build to fight King of Heroes.
- King of Heroes is one of the late-game bosses in the game, and apart from having a ton of health points, it also deals serious damage. So, we recommend that you team up with others to fight the boss. But do try to deal the most damage among all.
- Keep switching servers to skip the waiting time if the other players seem to focus on other boss spawns.
- Consider using the best swords, devil fruits, and fighting styles from the Sailor Piece tier list for dealing the maximum damage.
- Lastly, you can also use some of the luck-favoring titles, races, clans, and runes in Sailor Piece for attaining the best drop rates for the item.
How to Use Phantasm Core in Sailor Piece
The Phantasm Core is a crucial material to unlock the King of Heroes fighting style in Sailor Piece and use it to ascend your character. So, these are all the uses of Phantasm Core in Sailor Piece:
- King of Heroes Fighting Style: Interact with the King of Heroes NPC at the boss island. Then, submit 1 Phantasm Core, 6 Ancient Shards, 12 Throne Remnants, 3 Golden Essence, 22,500 Gems, 25 Million money, and have the Golden King title to get the style.
- Ascension 8: For the Sailor Piece ascension level 8, you will require 2 Phantasm Cores, 3 Slime Cores, and a few other tasks. This can massively help you increase damage and improve the luck of drops.

The King of Heroes fighting style provides superb AoE attacking abilities, helping you to defeat the enemies continuously and farm the rarer items in the game.
And that is all about getting the Phantasm Core in Sailor Piece, as well as how to use it. So, which fighting style are you after right now in the game? Tell us in the comments below.
The drop rate of the Phantasm Core is very low, ranging from 0.5-0.75%. However, you can increase this by using the best runes, clans, races, and titles in the game.
No, you can not buy the Phantasm Core in Sailor Piece using Robux. Rather, it must be obtained by defeating the bosses.
