Spagyria

The mod adds ingredients that let players brew status effects which are unobtainable through vanilla brewing. The effects include Bad Luck, Health Boost, Mining Fatigue and Dolphin's Grace, and a Four Leaf Clover ingredient is available as well. Each ingredient comes from a specific source: grass has a low chance to drop the clover, Wither Skeletons drop bones, Elder Guardians always drop Red Prismarine Crystals and regular Guardians drop them at a low chance, Silverfish drop their skin, Dolphins drop fins, Polar Bears drop livers, and a crafted Dragon Head yields the Ender Dragon Scale.

The mod requires Sinytra Connector to run on Fabric. It is published only for Fabric, for the 1.20 – 1.21.1 range across five release versions, and the latest file, 6.1.0+1.21, targets 1.21.1. A server running it needs every connecting player to have it too. The code is open source under the MIT License, and the source code and issue tracker are public.