If you are grinding your way to becoming the Wizard King in Roblox’s premier Black Clover RPG, you absolutely need every advantage you can get. Using the latest Black Grimoire codes is the fastest way to stockpile Yules, secure double mastery, and roll for the rarest legendary races without spending countless hours farming dungeons.
All Active Black Grimoire Codes
In our testing, we found that developer NikkiDZN drops codes quite randomly, usually to celebrate game updates or community milestones. I highly recommend using the Double Mastery and Double Yule codes right before you plan to do a heavy dungeon grinding session.
Here is the verified, up-to-date list of all working codes currently available in the game.
| Active Code | In-Game Reward | Status |
|---|---|---|
| Bro’s a slime | 5 grimoires removed, 5 Race tickets, 5 Class tickets, 5 Trait tickets | Verified Active |
| ULTAMAYT | 500,000 Yules & Double Yules Boost (15 Minutes) | Verified Active |
| JUICE | 1x Moguro Leaf Juice | Verified Active |
| GUIZERAYT | Double Mastery Boost (15 Minutes) | Verified Active |
Pro Tip: Based on my experience, boost timers count down even if you are just standing in the Grimoire Tower. Do not redeem GUIZERAYT it ULTAMAYT until you are actively fighting enemies or bosses!
Expired Black Grimoire Codes
Roblox codes do not last forever. If you are trying to input a code and the game gives you an error, it has likely moved to this expired list. We keep this list for reference so you know what rewards have previously been handed out.
| Expired Code | Previous Reward |
|---|---|
| free traits 123 | 10x Trait Rerolls |
| WHERE’S MY RACEEEE | 20x Race Rerolls |
| WHERE’S MY CLASS? | 15x Class Rerolls |
| 2025 CHRISTMAS TRAITS | 25x Trait Rerolls |
| MEREOLEONA | Double Mastery, Double Yules, and Double EXP |
| SOLMARRON | Free In-Game Rewards |
| CANDYGRIMOIRE2025 | Free Seasonal Rewards |
| CANDYSPEAR2025 | Free Weapon Skin/Boost |
| CANDYSWORD2025 | Free Weapon Skin/Boost |
| CANDYBOW2025 | Free Weapon Skin/Boost |
| CANDYSHIELD2025 | Free Weapon Skin/Boost |
| BIG UPDATE | Free Yules and Boosts |
| 1M VISITS | Free Celebration Rewards |
| 30KLIKESZZ! | Community Milestone Rewards |
| 20KLIKESOWO!!! | Community Milestone Rewards |
| 15KLIKES | Community Milestone Rewards |
How to Redeem Black Grimoire Codes Quickly:
- Open Roblox and launch the Black Grimoire experience.
- Important: You must join the official NikkiDZN Roblox Group before redeeming.
- Once in the game, press the M key on your keyboard to open the main menu.
- Locate the “Insert Codes” text box at the bottom of the menu screen.
- Type or paste your active code and hit Enter to instantly claim your rewards!
Why Are My Black Grimoire Codes Not Working?
There is nothing more frustrating than typing in a code and getting zero loot. I have run into this issue multiple times myself. If your Black Grimoire codes are failing, it is usually due to one of three common reasons.
First, ensure you have actually joined the NikkiDZN Roblox community group. The game has a hard lock on the redemption system, meaning non-group members cannot claim anything. I found that joining the group not only unlocks codes but also grants a permanent +1% luck boost to your account.
Second, check your spelling. Codes are rarely case-sensitive in this specific game, but spacing matters immensely. If you accidentally add a space at the end of a code while copy-pasting, the system will reject it.
Finally, the code might simply be expired. When a massive update drops, thousands of players rush the servers, and sometimes older promotional codes are quietly deactivated by the developers.
How to Maximize Your Code Rewards (Expert Tips)
Getting 500,000 free Yules from the ULTAMAYT code is amazing, but knowing how to spend it is what separates beginners from pros. In Black Grimoire, Yules serve as the primary currency for almost everything.
Based on my extensive time playing, I suggest holding onto your Yules until you reach the Grimoire Tower. Rolling for top-tier magic like Anti-Magic, Time, or Dark Light can be incredibly expensive.
Furthermore, if you want to push your luck even higher without codes, simply add the tag “BG_” or “_BG” to your Roblox display name. I tested this mechanic and verified that it stacks with the group bonus, giving you a total of +4% passive luck (+5% on weekends). This makes rolling for the legendary Devil or Angel races significantly easier.
More Epic Roblox Codes to Boost Your Account
If you are taking a break from rolling for the perfect grimoire and want to explore other massive Roblox experiences, checking for active freebies is the best way to jumpstart your progress. We have compiled massive reward lists for the hottest games right now.
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