You can now master your favorite weapon in Roblox’s Sailor Piece and make it stronger than ever. The Mastery system was introduced in the latest Ghoul update. Each milestone you achieve with your selected spec grants additional buffs, including increased damage, luck, and critical chance. In this article, we will go over how the Mastery system works in Sailor Piece.
Mastery System Explained in Sailor Piece

To start, the Mastery system lets you strengthen your swords and melees by mastering them. To gain Mastery levels, you must defeat 25 enemies using the spec you want to level up. The maximum Mastery level is 500, and you will need 50,000 kills in total to fully master a spec. You can also purchase the 2x Mastery Gamepass for 699 Robux to reach Mastery milestones faster. Each milestone grants additional buffs, including increased luck, damage, and critical chance.
To access the Mastery system, follow these steps:
- Reach the Starter Island in Sea 2.
- Find the Mastery NPC and interact with them.
- This will open the Mastery menu.
- Alternatively, you can open the inventory menu and access the Mastery section directly.
All Mastery Milestones in Sailor Piece
Here are all the milestones for Mastery in Sailor Piece:
| Mastery Level | Reward | Total Kills Required |
|---|---|---|
| 25 | +7% Luck Bonus | 625 Kills |
| 50 | +7% Damage Bonus | 1,250 Kills |
| 100 | +1% Crit Chance Bonus | 3,000 Kills |
| 150 | +10% Crit Damage Bonus | 5,500 Kills |
| 200 | +10% Luck Bonus | 8,750 Kills |
| 250 | +10% Damage Bonus | 12,500 Kills |
| 300 | +1% Crit Chance Bonus | 17,500 Kills |
| 350 | +15% Crit Damage Bonus | 25,000 Kills |
| 400 | +15% Luck Bonus | 32,500 Kills |
| 450 | +15% Damage Bonus | 41,250 Kills |
| 500 | 25% Chance to Deal 1.5x Damage | 50,000 Kills |
Once you achieve all Mastery milestones, you will get these bonuses in total:
- +32% Luck
- +32% Damage
- +2% Crit Chance
- +25% Crit Damage
- A 25% Chance to Deal 1.5x Damage
How To Reach Mastery Milestones Faster

Now that you understand how the Mastery Milestones work, you can begin grinding toward level 500. However, reaching 12,500 kills will take a significant time. Thankfully, there are a few efficient methods that can help you level up faster.
Defeating Mobs
It is important to note that different enemy types contribute differently to the Mastery system. This means that normal enemies count as one kill, while bosses count as three kills each toward the Mastery system. Check out how many kills you contribute towards the Mastery system for each mob type:
- Normal Mobs - 1 Kill each
- Normal Bosses - 3 Kills each
- World Bosses and Sea Beasts - 75 Kills each
- Raid Bosses - 100 Kills each
Currently, Raid Bosses give you the most kills in the game. You can also AFK farm Sea Beasts with your friends. Note that Boss Rush, Infinite Tower, and Crystal Defense will not count towards Mastery kills.
Using AoE Specs
AoE is your best friend if you want to stack kills and level up your Mastery. You can utilize spots with several mobs, such as Shinjuku Island and the new Starter Island in Sea 2. Both islands have multiple mob spawn locations, making them the best way to farm Mastery points. You can use AoE specs, such as The World, Soul Reaper, and Sun God.
That is all for the Mastery system in Sailor Piece. With this new system, you can use your favorite weapons in the late game stages as well. Make sure to check out the full Sailor Piece Wiki for more information on the game!
Published: May 20, 2026