Babylon Key Guide in Sailor Piece: How to Craft It and Unlock Gilgamesh F Move
The Babylon Key in Sailor Piece is a crucial crafting item used to unlock Gilgamesh’s F ability, one of the strongest skills currently available in the game. Because of its power, obtaining this key requires a combination of grinding enemies, farming boss drops, and meeting a specific race requirement. This guide explains exactly where to craft the Babylon Key and how to collect all required materials efficiently so you can unlock Gilgamesh’s full potential. Also check out our Sailor Piece Codes for more rewards!
What Is the Babylon Key?
The Babylon Key is a special crafted item tied directly to progression in the Gilgamesh boss line. Once created, it allows you to unlock Gilgamesh’s F move, significantly boosting your combat performance. Unlike standard items, this key cannot be obtained directly. You must gather materials from multiple sources and craft it through a specific NPC on Boss Island.
Babylon Key Crafting Requirements
To craft the Babylon Key, you need four key requirements. Some are easy to farm, while others depend heavily on boss RNG.
- Broken Swords 100
- Golden Essence 5
- Phantasm Cores 2
- Servant Race Required
Each requirement plays an important role in the crafting process, especially the race condition, which is often overlooked by new players.
How to Get All Babylon Key Materials
1. Broken Swords Farming
Broken Swords are the easiest material to collect. They drop from sword-wielding enemies found across different maps.Although the drop rate is fairly consistent, the main challenge is the quantity needed. You will need 100 Broken Swords, so expect a moderate farming session focusing on basic mobs. The best method is to farm densely packed enemy areas where sword-type NPCs spawn frequently to speed up collection.
2. Golden Essence and Phantasm Cores
Both Golden Essence and Phantasm Cores are obtained exclusively from the Gilgamesh boss. This means you must repeatedly defeat Gilgamesh to gather enough materials. Each kill has a chance to drop either item, but the drop rate is not guaranteed.
Because of RNG, the number of runs required may vary significantly between players. Some may finish quickly, while others may need extended farming sessions. The key strategy here is consistency—repeated boss farming is the only reliable method.
3. Servant Race Requirement
One of the most important requirements is having the Servant race equipped. Without it, the crafting NPC will not allow you to proceed, even if you have all materials ready. If you do not currently have the Servant race, you will need to use Race Reroll items until you obtain it. Make sure to secure this before attempting crafting, as it is mandatory.
How to Craft the Babylon Key
Once you have gathered all materials and equipped the Servant race, head to Boss Island.
- Travel to Boss Island
- Locate the Babylon Key Crafter NPC
- Ensure your Servant race is active
- Speak to the NPC to open the crafting menu
- Submit all required materials
- Receive the Babylon Key in your inventory
If the Servant race requirement is not met, the crafting option will not appear, so double-check your setup before interacting.
What You Unlock With the Babylon Key
After crafting and using the Babylon Key, you unlock Gilgamesh’s F move, a powerful ability that significantly improves your combat performance. This ability is considered one of the strongest upgrades in Sailor Piece, making the entire farming process highly rewarding. It enhances both damage output and overall efficiency during fights, especially in boss battles and high-level content.
Tips for Farming the Babylon Key Faster
To reduce grinding time, a few strategies can help improve efficiency:
- Focus on farming Broken Swords in high-density enemy zones
- Repeatedly farm Gilgamesh in a consistent rotation for Essence and Cores
- Prioritize obtaining the Servant race early to avoid delays
- Farm in groups or optimized routes to speed up mob clearing
The most time-consuming part is usually boss RNG, so persistence is key.
The Babylon Key in Sailor Piece is a major progression milestone tied to one of the strongest abilities in the game. While the farming process requires effort—especially with boss drops and race requirements—the reward is well worth it. Once crafted, it unlocks Gilgamesh’s F move, giving you a major power spike that improves both PvE and boss-fighting performance. If you plan to push progression seriously, the Babylon Key is one of the most important goals to prioritize.
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