ModsFinder

RSL Crimson

by rodder10

RSL Crimson is a Fabric client mod for Cobblemon players who join the Rodd's Shadow League server, with fixes to battle and party behavior.

FabricClient-side onlyAll rights reserved1.21.1 – 1.21.11

What it does

The mod adds client-side functionality tied to the Rodd's Shadow League server. Only the player's client loads it, so the server itself does not need to install anything, and players who do not join that server have no use for it.

Its changes target Cobblemon. It synchronizes the Party PC, corrects several visual battling bugs such as challenges between players and set-level battles, and resynchronizes the levels of a team after a level 50 battle. Battling safeguards and a fix that keeps Pokemon from being deleted after set level PvP battles are also included.

Files are published for Fabric only, and every release covers 1.21.1 – 1.21.11, with 1.2.14 for 1.21.1 as the latest build. The mod is released under All rights reserved and is not open source.

Key features

  1. Party PC synchronization

    The Cobblemon Party PC stays in step with the player's party so that the two views do not disagree.

  2. Battle visual fixes

    Several visual glitches in Cobblemon battles are corrected, including those that appear when a player challenges another player.

  3. Team level resync

    After a level 50 battle, the levels of the original team are resynchronized, so they are restored correctly.

  4. Set level PvP safeguards

    Pokemon are kept from being deleted after set level battles, and additional battling safeguards guard against related losses.

Compatibility

Latest build for each game version and loader.

1.21.x11 of 11 versions with builds
1.21.111.2.11
1.21.101.2.11
1.21.91.2.11
1.21.81.2.11
1.21.71.2.11
1.21.61.2.11
1.21.51.2.11
1.21.41.2.11
1.21.31.2.11
1.21.21.2.11
1.21.11.2.14
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Use cases

Joining Rodd's Shadow League

Players who connect to the Rodd's Shadow League server install the mod on their client to get the intended battle and party behavior.

Set level battles

Players who run set level PvP battles on that server rely on the fix that keeps their Pokemon from being removed afterward.

Who it’s for: Players who take part in the Rodd's Shadow League server and use Cobblemon on Fabric 1.21.1 or a later release up to 1.21.11 will find the mod's fixes relevant. Players on other servers have no need for it.

Questions

Does RSL Crimson need to be on the server?

No. Players add it to their own game, and a server needs no copy. The server runs without it.

Which loader does RSL Crimson use?

Files are published for Fabric only, so the mod has to be installed with a Fabric loader.

Which game versions are supported?

Builds cover 1.21.1 – 1.21.11, with files for each of the eleven release versions in that range.

More from rodder10

All projects
RSL Bundle1.21.1 – 1.21.11

What the author says

Rodd's Shadow League - Client Mod This mod has no use/purpose outside the scope of the RSL server!
rodder10, on the Modrinth page

Official listing

Owner
rodder10
Published
2026-07-03
Updated on Modrinth
2026-07-24
Facts verified
2026-10-15
Open on ModrinthCompare