The Babylon Key serves as a crucial material within Sailor Piece, unlocking the King of Heroes’ most powerful moves while also providing a notable damage enhancement. However, acquiring this key involves a meticulous crafting process, as it requires rare ingredients that aren’t easily obtainable. Let’s delve into the ways to acquire the Babylon Key and explore its applications in the game.
Methods to Acquire the Babylon Key in Sailor Piece
Since the Babylon Key is a craftable item, players cannot earn it by defeating enemies or through loot from chests. The crafting process demands specific materials: 100 Broken Swords, 5 Golden Essences, and 2 Phantasm Cores. Follow these steps to successfully craft a Babylon Key in Sailor Piece:
- Access Boss Island using the portal.
- Climb to the top of the left palm where you’ll encounter the Babylon Key Crafter NPC.
- Equip the Servant Race and ensure you have the required materials: 100 Broken Swords, 5 Golden Essences, and 2 Phantasm Cores.
- Position yourself near the NPC, hold the ‘E‘ key, and submit your items to receive the Babylon Key.

Effective Strategies for Collecting Babylon Key Materials in Sailor Piece
Gathering the necessary materials for the Babylon Key can be challenging, particularly due to their low drop rates. To streamline your farming process and accelerate your material collection, consider the following tips:
- Obtain the Servant race, classified as a Mythical tier, by rerolling races. Utilize available Sailor Piece codes for free rerolls.
- To farm Broken Swords, defeat Slime Warriors located on Slime Island using a blend of potent swords, devil fruits, and effective fighting styles.
- Engage the King of Heroes boss, which offers a 1.5-2.5% probability of dropping Golden Essence and a 0.5-0.75% chance for Phantasm Cores.
- Boost your luck by investing in the Skill Tree and acquiring better Spec Passives for your weapons, in conjunction with luck-enhancing traits and titles.
- Before attempting to farm bosses, gather a sufficient amount of Divine Grails to facilitate the process.
Utilizing the Babylon Key in Sailor Piece
The Babylon Key has a singular purpose: it unlocks the F move associated with the King of Heroes fighting style, which also grants a +30% Damage Buff. Here’s how to effectively use the Babylon Key:
- Once you possess the key, access your inventory.
- Look for the Babylon Key within the Items section.
- Select the key, which will generate a prompt at the top of your screen.
- Confirm by clicking the Yes button to activate the King of Heroes’ F move and receive the damage boost.

This guide outlines the process of crafting a Babylon Key in Sailor Piece and using it to unleash the King of Heroes’ formidable fighting style. The F move is noted for its impressive area-of-effect attacks and vibrant animations.
Have you managed to unlock the F move using the Babylon Key? Or are you exploring possibilities for mastering other high-tier fighting styles in Sailor Piece, like the coveted Moon Slayer? Share your thoughts in the comments below.
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