Mastery is one of the most important progression systems in Project Slayers 2, especially when unlocking the higher requirements of Breathing Styles and combat abilities. The fastest route changes depending on character level, so knowing when to switch from Dungeons to Crow or Biwa Bell quests can save a significant amount of grinding time.
| Method | Best time to use | Main advantage | Efficiency |
|---|---|---|---|
| Crow quests | Max level | High Mastery XP from repeatable quests | Excellent |
| Biwa Bell quests | Max level | Strong XP when server scaling is high | Excellent |
| Dungeons | Before max level | Consistent Mastery progression | Good |
| Ranked PvP | Any level with access | 1,000 Mastery XP per win | Moderate |
| Private servers | — | Easier farming environment | Lower XP |
Requirements
The most important requirement is reaching max character level before committing to the fastest Mastery grind. Once at the level cap, excess progression is converted into Mastery more efficiently. If you follow the Slayer route, you also need access to the Kasugai Crow after Final Selection, which becomes an important source of repeatable quests.
How to Get Max Mastery Fast in Project Slayers 2
Step 1: Reach max level first
Do not spend hours trying to push Max Mastery while the character is still leveling normally.
Prioritize the standard quest progression until reaching the current level cap. The leveling route moves through Windy Peak, the bear area, Bamboo Grove, the waterfall cave, Dreamfall Hollow, Mistfall Harbor, and Iceveil Valley before transitioning into higher-level boss and Crow quests.
Once the character reaches the cap, the Mastery grind becomes the main progression target.
Step 2: Get access to Crow quests
Slayers should complete Final Selection to obtain the Kasugai Crow. The Crow provides repeatable missions and becomes particularly valuable during late-game progression.
After obtaining the Crow, check its available missions and prioritize contracts that overlap with bosses or enemies already being farmed.
Step 3: Farm Crow quests in a populated public server
For the fastest reported XP rates, use a busy public server rather than a private server.
Community testing indicates that quest rewards can scale according to the number of opposing-faction players present in the server. One documented comparison showed a quest paying roughly 3,000 XP in a quieter server and around 6,000 XP in a populated one.
This makes server selection a major part of the Mastery strategy.
A useful setup is to join a populated server where high-level players from the opposing faction are already active. If playing with friends or an alternate account, having the appropriate high-level player present can help maximize the scaling described in the testing.
Step 4: Stack Crow objectives with boss quests
Do not treat every Crow quest as a separate activity.
Instead, look for a Crow contract targeting a boss that already has another available quest. Accept both, defeat the target once, and collect the rewards from both objectives.
This double-dipping approach reduces travel time and lets a single boss kill contribute toward multiple progression sources. Late-game guides similarly recommend cycling boss quests alongside Crow missions rather than relying on a single quest giver.
Step 5: Use Biwa Bell quests when available
Biwa Bell quests can also provide strong Mastery XP, particularly when the server’s opposing-faction population is high.
The same server-scaling principle makes these quests considerably more attractive in active public servers than in quiet or private ones.
Keep checking for available Biwa Bell objectives while rotating through the Crow and boss quests instead of waiting for one quest to become available again.
Step 6: Rotate bosses during cooldowns
One of the biggest problems with late-game Mastery farming is downtime.
If a boss can be defeated in less than a minute but the associated quest takes significantly longer to become available again, repeatedly waiting at the same location wastes potential XP.
Instead, rotate between available bosses and quest targets. Current progression guides recommend a boss rotation because late-game quests increasingly revolve around repeatable boss encounters.
Step 7: Use Dungeons before reaching max level
If the character is not yet at max level, Dungeons are the better Mastery-farming alternative.
The supplied testing indicates that a strong 1.5-hour Dungeon session with suitable point cards can provide roughly 20–50 Mastery levels during mid-game progression.
This makes Dungeons particularly useful when the character is still gaining normal levels. Once the character reaches the late-game level range, however, Dungeon progression becomes much less efficient compared with Crow and server-scaled quests.
Step 8: Use Ranked PvP as a backup method
Ranked PvP provides another way to earn Mastery.
A win awards approximately 1,000 Mastery XP, according to the supplied testing, but this is substantially slower than the strongest Crow and Biwa Bell farming setups.
PvP is therefore better treated as an alternative when quest farming becomes repetitive or when a player is already actively playing Ranked.
Step 9: Minimize downtime between quests
The fastest Mastery grind is not simply about finding the highest XP reward. Time spent waiting, travelling, or searching for another objective directly reduces XP per hour.
Keep several activities available, rotate bosses during cooldowns, use movement options to shorten travel, and avoid standing around waiting for one quest to return.
A populated server is especially useful because server-scaled quests can provide considerably better rewards than the same objectives in quieter environments.
Rewards and advantages of max Mastery
| Farming method | Mastery benefit | Best use |
|---|---|---|
| Crow quests | High quest-based Mastery XP | Max-level farming |
| Biwa Bell quests | High XP with server scaling | Max-level rotation |
| Dungeons | Strong early/mid-game progression | Before max level |
| Ranked PvP | 1,000 Mastery XP per win | Alternative farming |
| Boss rotations | Reduces quest downtime | Combine with Crow/Biwa quests |
| Public servers | Higher reported quest rewards | Maximize XP per run |
Why public servers are better for Mastery farming
The biggest efficiency difference is the reported server-based XP scaling. A quiet or private server may be easier because there is less competition for quests, but the XP reduction can make the overall grind considerably longer.
The trade-off is that public servers introduce competition. Crow quests can be taken by other players, and bosses may be contested. This means the highest theoretical XP rate does not always translate into the smoothest farming session. Community testing specifically highlights quest stealing as one of the main drawbacks of this strategy.
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