If you are pushing into late-game progression in Sailor Piece, the Corrupt Crown becomes one of the most important items you need. This rare material unlocks powerful upgrades and advanced content, but getting it is not simple.
This guide explains exactly how to get the Corrupt Crown, the fastest farming method, and how to use it efficiently.
What Is Corrupt Crown in Sailor Piece?
Corrupt Crown is a mythical drop item that you can only obtain from a specific boss. It plays a key role in unlocking top-tier weapons and completing late-game progression systems.
- Required for Corrupted Excalibur
- Needed for Ascension 10
- Essential for high-level builds
Because of its low drop rate, most players struggle to farm it efficiently.
How to Get Corrupt Crown in Sailor Piece
You can only get Corrupt Crown by defeating the Corrupted Knight boss.
Follow this exact process:
Step-by-Step Method
- Go to Boss Island
- Find the Boss Summoner NPC
- Spend the required materials:
- 1x Dark Grail
- 650,000 Money
- 650 Gems
- Spawn the Corrupted Knight
- Defeat the boss and repeat the process
The boss has:
- 750,000,000 HP
- Only ~0.59% drop rate for Corrupt Crown
That means you must repeat this process multiple times before you get the drop.
How to Farm Dark Grails (Required Material)
Before you can even fight the boss, you need Dark Grails.
Best method:
- Farm high-level mobs (like Quincy mobs)
- Focus on high spawn-rate areas
- Use AoE builds to speed up farming
You should stock multiple Dark Grails before starting boss runs to avoid interruptions.
Can You Trade Corrupt Crown?
Yes, you can trade Corrupt Crown in Sailor Piece. If grinding feels too slow, you can use the in-game trading system, join community servers like Discord, or exchange high-value items with other players.
However, since Corrupt Crown is a rare drop, most trades will be expensive, so be prepared to offer valuable items in return.
How to Use Corrupt Crown in Sailor Piece
Once you get the item, you can use it for two major upgrades:
Corrupted Excalibur
To unlock this powerful weapon, you need:
- Corrupt Tyrant Title
- 25x Dark Grail
- 15x Morgan Remnant
- 8x Alter Essence
- 3x Corruption Core
- 1x Corrupt Crown
Ascension 10
For late-game progression:
- 3x Corrupt Crown
- 2x Path Fragment
This makes farming multiple crowns necessary.
Corrupt Crown stands out as one of the hardest items to farm in Sailor Piece, but it also delivers some of the highest value in late-game progression. When you follow the right strategy, you reduce wasted time, improve your boss run efficiency, and steadily increase your chances with each attempt. Play Now!
