CobbleBuilds: Leaders is an addon for Cobblemon that lets you find Gyms, defeat Gym Leaders, and aquire Gym Badges to become the best there ever was.


This project is still in alpha. Everything is subject to change, possibly breaking things in the process. Always backup your world before updating the pack to ensure you can revert changes if necessary.
When updating, if the minor or major version changes, you may lose some progress.
| Safe | Not guaranteed | |
|---|---|---|
| 0.0.0 → 0.0.1 | 0.0.1 → 0.1.0 | 0.1.0 → 1.0.0 |

While exploring the world, you may come across Gyms populated with Gym Trainers. You can defeat those Gym Trainers to increase your Trainer Rank.
As your Trainer Rank increases, different Gym Trainers will spawn, and their pokémon parties will scale in difficulty accordingly. Once you reach a certain Trainer Rank, one of four Gym Leaders will spawn.
Each Gym Leader grants a Gym Badge when defeated for the first time. Those being divided into four ranks, granted in the following order: Copper, Gold, Diamond, and Netherite.
You can check your current Gym Badges and Trainer Rank via the CobbleBuilds Trainer Card tab in the advancements screen.

The pack currently includes 12 Gyms and 48 Gym Leaders.
Click to show full list
| 0.0.0︱Initial release | ||||
|---|---|---|---|---|
| Electric | Clemont | Elesa | Lt. Surge | Wattson |
| Fire | Blaine | Chili | Flannery | Kabu |
| Grass | Brassius | Cilan | Erika | Gardenia |
| Poison | Janine | Klara | Koga | Roxie |
| Rock | Brock | Gordie | Roark | Roxanne |
| Water | Crasher Wake | Cress | Misty | Wallace |
| 0.1.0︱Sinnoh-Johto Gyms Update | ||||
| Bug | Bugsy | Burgh | Katy | Viola |
| Fighting | Brawly | Chuck | Korrina | Maylene |
| Ghost | Allister | Fantina | Morty | Ryme |
| Ice | Brycen | Candice | Grusha | Pryce |
| Normal | Larry | Lenora | Norman | Whitney |
| Steel | Byron | Jasmine | Molayne | Peony |

CobbleBuilds: Sounds
An optional resource pack that adds battle theme remixes by Zame to the trainer battles.

Instrafe
His addon Cobbled Trainers was very valuable in helping us understand the Cobblemon NPC system when we started the project.
Inazuma
For making Steel Gym Leader Jasmine's texture.

Join our Discord server to stay up to date with news about the project, troubleshoot issues, submit feedback, or just throw some nice words our way.
All Versions
+ Add Version- A 3 second grace period was added to NPC spawners to avoid duplicate NPCs from spawning when a mod like C2ME is used.
- A 3 second grace period was added to NPC spawners to avoid duplicate NPCs from spawning when a mod like C2ME is used.
- The resource pack status message has been updated to improve clarity.
``
> git log
commit f1b306bae4e3752c5764b0fcdc20582bda5d1862 (HEAD, tag: 0.1.2-hf.1)
Author: Bibu <44452075+B1BU@users.noreply.github.com>
Date: Wed Jul 1 08:19:14 2026 +0000
fix typo
commit 195bc3258cd6989749da871da44839f0500f62cc
Author: � <>
Date: Thu Jan 1 00:00:00 1970 +0000
�
commit 02e102757afb406cd909bc100f051f6d6a0daeb5
Author: � <>
Date: Thu Jan 1 00:00:00 1970 +0000
Revert "remove unknown corrupted files"
commit 9f4b1fd5f3f751b4973fddbf2d4aa7073f98ec1e
Author: Bibu <44452075+B1BU@users.noreply.github.com>
Date: Wed Jul 1 08:15:33 2026 +0000
add 0.1.2-hf.1 changelog
commit 39838a688d9302b20c99598c7a0016f833b49bcc
Author: Bibu <44452075+B1BU@users.noreply.github.com>
Date: Wed Jul 1 08:08:40 2026 +0000
update resource pack status message
commit fd71e738403e3c5629efe23cb31a8bc844863d13 (tag: 0.1.2)
Author: Bibu <44452075+B1BU@users.noreply.github.com>
Date: Thu Jun 18 01:08:59 2026 +0000
update changelog
commit 8f19cbaf3196ac62313225e644d05bd05d51016c
Author: � <>
Date: Thu Jan 1 00:00:00 1970 +0000
Revert "fill random tunnel left of gym 9 leader platform"
commit 4dec3ac8389fc649da6818fa2291358f0b527e14
Author: � <>
Date: Thu Jan 1 00:00:00 1970 +0000
Revert "remove random tuff wall and hole behind gym 7"
:
``- The resource pack status message has been updated to improve clarity.
``
> git log
commit f1b306bae4e3752c5764b0fcdc20582bda5d1862 (HEAD, tag: 0.1.2-hf.1)
Author: Bibu <44452075+B1BU@users.noreply.github.com>
Date: Wed Jul 1 08:19:14 2026 +0000
fix typo
commit 195bc3258cd6989749da871da44839f0500f62cc
Author: � <>
Date: Thu Jan 1 00:00:00 1970 +0000
�
commit 02e102757afb406cd909bc100f051f6d6a0daeb5
Author: � <>
Date: Thu Jan 1 00:00:00 1970 +0000
Revert "remove unknown corrupted files"
commit 9f4b1fd5f3f751b4973fddbf2d4aa7073f98ec1e
Author: Bibu <44452075+B1BU@users.noreply.github.com>
Date: Wed Jul 1 08:15:33 2026 +0000
add 0.1.2-hf.1 changelog
commit 39838a688d9302b20c99598c7a0016f833b49bcc
Author: Bibu <44452075+B1BU@users.noreply.github.com>
Date: Wed Jul 1 08:08:40 2026 +0000
update resource pack status message
commit fd71e738403e3c5629efe23cb31a8bc844863d13 (tag: 0.1.2)
Author: Bibu <44452075+B1BU@users.noreply.github.com>
Date: Thu Jun 18 01:08:59 2026 +0000
update changelog
commit 8f19cbaf3196ac62313225e644d05bd05d51016c
Author: � <>
Date: Thu Jan 1 00:00:00 1970 +0000
Revert "fill random tunnel left of gym 9 leader platform"
commit 4dec3ac8389fc649da6818fa2291358f0b527e14
Author: � <>
Date: Thu Jan 1 00:00:00 1970 +0000
Revert "remove random tuff wall and hole behind gym 7"
:
``- Gym structures have been slightly updated.
- Fire has been removed from Ghost Gym to prevent NPCs from killing themselves.
- Gym Guides now spawn at the entrance of gyms instead of randomly around the world.
- Healing Machines have been removed from gyms and replaced with a "Heal party" option for the Gym Guide.
- Gym trainers no longer stray too far from where they spawn.
- NPC AI has been slightly improved.
- You will now receive a notification whenever your trainer rank increases.
- A "Back" option has been added to the trade dialogue to avoid confusion about how to return to the previous page.
- The trading dialogue now tells you the offer and the requirements more clearly.
- The trade sound effect has been changed.
- Gym structures have been slightly updated.
- Fire has been removed from Ghost Gym to prevent NPCs from killing themselves.
- Gym Guides now spawn at the entrance of gyms instead of randomly around the world.
- Healing Machines have been removed from gyms and replaced with a "Heal party" option for the Gym Guide.
- Gym trainers no longer stray too far from where they spawn.
- NPC AI has been slightly improved.
- You will now receive a notification whenever your trainer rank increases.
- A "Back" option has been added to the trade dialogue to avoid confusion about how to return to the previous page.
- The trading dialogue now tells you the offer and the requirements more clearly.
- The trade sound effect has been changed.
- Prune Gym Guides every 3 minutes to prevent too many of them from spawning in the same place.
### Note
We are currently working on changing how Gym Guides spawn for the next release. Thank you for your patience.
- Prune Gym Guides every 3 minutes to prevent too many of them from spawning in the same place.
### Note
We are currently working on changing how Gym Guides spawn for the next release. Thank you for your patience.
- Gym Guides now despawn if they aren't in a 64 block radius of a player for more than one minute.
- You can now view and edit pack settings with
/function cobblebuilds:menu/settings/<page>. - The feedback pop-up will now only show when reloading, and can be disabled globally in the settings.
- The warning for when the required resource pack is missing now points to a trigger command that tells you how to find and download it.
- Gym Guides now despawn if they aren't in a 64 block radius of a player for more than one minute.
- You can now view and edit pack settings with
/function cobblebuilds:menu/settings/<page>. - The feedback pop-up will now only show when reloading, and can be disabled globally in the settings.
- The warning for when the required resource pack is missing now points to a trigger command that tells you how to find and download it.
This update adds content inspired by the games that take place in the Sinnoh and Johto regions, along with some tweaks to progression and general improvements.
- 6 new gyms and 24 gym leaders were added:
- Bug Gym
- Gym Leader Bugsy
- Gym Leader Burgh
- Gym Leader Katy
- Gym Leader Viola
- Fighting Gym
- Gym Leader Brawly
- Gym Leader Chuck
- Gym Leader Korrina
- Gym Leader Maylene
- Ghost Gym
- Gym Leader Allister
- Gym Leader Fantina
- Gym Leader Morty
- Gym Leader Ryme
- Ice Gym
- Gym Leader Brycen
- Gym Leader Candice
- Gym Leader Grusha
- Gym Leader Pryce
- Normal Gym
- Gym Leader Larry
- Gym Leader Lenora
- Gym Leader Norman
- Gym Leader Whitney
- Steel Gym
- Gym Leader Byron
- Gym Leader Jasmine
- Gym Leader Molayne
- Gym Leader Peony
- 4 new gym trainer classes were added:
- Lass
- Hiker
- Black Belt
- Psychic
- Gym badges are now separated into 4 tiers, one for each leader you defeat in a gym.
- You can now track your rank, league and aquired gym badges via the "CobbleBuilds Trainer Card" tab on the advancements screen.
- You can now purchase gym maps from a new NPC called the Gym Guide that spawns randomly around the world.
- Gyms are now present in a wider variety of biomes.
- Fire gym now also generates in the overworld.
- Some of the previously added gyms were updated to include the new trainer classes.
- You are no longer blocked from challenging gym leaders after you've aquired their gym's badge.
- Lower ranking trainer classes now have smaller parties.
- The pack is now avaliable in Brazilian Portuguese.
- Some NPC textures were fixed.
- The wording on the missing resource pack warning was changed to improve clarity.
- Gyms now use the natural variant of healing machines.
- Water gym has been redesigned.
- Fire gym has been redesigned (to prevent trainers from killing themselves).
- General enhancements to underlying systems.
#### Note
Some changes may not apply to previously generated structures.
This update adds content inspired by the games that take place in the Sinnoh and Johto regions, along with some tweaks to progression and general improvements.
- 6 new gyms and 24 gym leaders were added:
- Bug Gym
- Gym Leader Bugsy
- Gym Leader Burgh
- Gym Leader Katy
- Gym Leader Viola
- Fighting Gym
- Gym Leader Brawly
- Gym Leader Chuck
- Gym Leader Korrina
- Gym Leader Maylene
- Ghost Gym
- Gym Leader Allister
- Gym Leader Fantina
- Gym Leader Morty
- Gym Leader Ryme
- Ice Gym
- Gym Leader Brycen
- Gym Leader Candice
- Gym Leader Grusha
- Gym Leader Pryce
- Normal Gym
- Gym Leader Larry
- Gym Leader Lenora
- Gym Leader Norman
- Gym Leader Whitney
- Steel Gym
- Gym Leader Byron
- Gym Leader Jasmine
- Gym Leader Molayne
- Gym Leader Peony
- 4 new gym trainer classes were added:
- Lass
- Hiker
- Black Belt
- Psychic
- Gym badges are now separated into 4 tiers, one for each leader you defeat in a gym.
- You can now track your rank, league and aquired gym badges via the "CobbleBuilds Trainer Card" tab on the advancements screen.
- You can now purchase gym maps from a new NPC called the Gym Guide that spawns randomly around the world.
- Gyms are now present in a wider variety of biomes.
- Fire gym now also generates in the overworld.
- Some of the previously added gyms were updated to include the new trainer classes.
- You are no longer blocked from challenging gym leaders after you've aquired their gym's badge.
- Lower ranking trainer classes now have smaller parties.
- The pack is now avaliable in Brazilian Portuguese.
- Some NPC textures were fixed.
- The wording on the missing resource pack warning was changed to improve clarity.
- Gyms now use the natural variant of healing machines.
- Water gym has been redesigned.
- Fire gym has been redesigned (to prevent trainers from killing themselves).
- General enhancements to underlying systems.
#### Note
Some changes may not apply to previously generated structures.
- Removed operator permissions requirement
- Removed operator permissions requirement
- Temporarily removed Fire Gyms from the Desert biome. They can still be found in the Nether.
- Temporarily removed Fire Gyms from the Desert biome. They can still be found in the Nether.
- Fixed an oversight that was causing a ton of lag
- Fixed an oversight that was causing a ton of lag