The most recent Grow a Chicken Fighter update adds two connected combat systems, Chicken Promotions and Battle Charms, along with a new egg, a dozen fresh chickens, and a working code. Promotions raise a fighter’s base stats and open Battle Charm slots, while Battle Charms fill those slots with permanent stat bonuses. Both feed directly into Pit and Arena results.
Quick answer: Open the Flock menu, pick a chicken, use its Promote tab to spend duplicates and add a star, then use the Battle Charm menu to roll charms into the slots your stars unlocked. Redeem BATTLEREADY in the Codes menu for 200 Charms, a Royal Egg, and a 15‑minute double Hatch Luck boost.
What the Promotions update adds
This is the third major update for the game, released on August 29, 2026. The headline features are Chicken Promotions and Battle Charms, but the patch also expands the shop and the hatch pool.
| Addition | Detail |
|---|---|
| Chicken Promotions | Spend duplicate chickens to raise base stats and unlock progression |
| Battle Charms | Roll charms for permanent combat stat bonuses |
| Trick Egg | New egg laid by Catalyst Hens |
| New chickens | 12 added to the roster |
| Favoriting | Protects chosen chickens from being selected |
| Shop items | Daily Reward, a new Pack, and a new Auto Rebirth option |
| New code | BATTLEREADY |
How to promote a chicken
Promotion costs duplicates of the exact same chicken. Each promotion permanently increases the fighter’s base stats and adds a star beneath its name. The duplicate cost climbs with every promotion. Doll Hen, for example, needs one duplicate for its first promotion and two for the second.
Each promotion star also controls how many Battle Charm slots that chicken can use, so promoting is the gate to the full charm system.
| Promotion star | Charm slot unlocked |
|---|---|
| No promotion | I |
| 2‑star | II |
| 4‑star | III |
| 6‑star | IV |
| 8‑star | V and VI |
| 10‑star | VII and VIII |
How Battle Charms work
Battle Charms give permanent stat boosts to a single chicken. You unlock the feature at Rebirth Level 2, and each chicken has eight charm slots labeled I through VIII. You start with slot I unlocked, and promotions open the rest.
Charms carry over when you fuse two chickens of the same rarity. Fusing different rarities does not guarantee the carryover.
Charm rarities and drop rates
Rarity decides how large the stat percentage is. Higher rarities are far less common but give the biggest boosts.
| Rarity | Drop rate |
|---|---|
| Common | 49.8% |
| Uncommon | 26.9% |
| Rare | 17.9% |
| Super Rare | 4.3% |
| Legendary | 1.0% |
| Ascended | 0.1% |
Battle Charm stat caps
| Stat boost | Maximum percentage |
|---|---|
| DEF | 13.3% |
| HP | 13.3% |
| CRIT% | 11.1% |
| CRIT RES | 11.1% |
| CRIT DMG | 11.1% |
| ABILITY Boost | 8.9% |
| DMG Reduction | 8.9% |
| Movement Speed Boost | 8.9% |
Where to get Charm Dust
Charm Dust is the currency for rolls. You can claim 100 Charm Dust daily from the in‑game Shop, or buy more with Robux from the same Shop.
Trick Egg and the Catalyst Hen
The Trick Egg is the new egg in this update, and only the Catalyst Hen lays it, at a 2% chance. The Catalyst Hen itself is a Secret‑rarity chicken and is hard to obtain, so the Trick Egg sits behind a rare pull. Hatching a Colossus Egg has less than a 0.2% chance of dropping the Catalyst Hen.
Redeem the BATTLEREADY code
The update shipped with one working code. Enter it in the Codes menu exactly as written to claim the rewards.
| Code | Rewards |
|---|---|
| BATTLEREADY | 200 Charms, 1x Royal Egg, and 2x Hatch Luck for 15 minutes |
You know the code worked when the rewards land in your inventory and the Hatch Luck timer starts counting down. Codes are case‑sensitive, so type BATTLEREADY exactly.
Promotions and Battle Charms are meant to be stacked over time. Promote a chicken to open more slots, then keep rolling and locking charms to push its Pit and Arena performance, and use the Favorite option so a fighter you have invested in never gets pulled into a fusion or promotion by mistake.
