Dependencies (Only For Mod Versions):

• Fabric -> Fabric API
• Quilt -> Quilted Fabric API / Quilt Standard Libraries (QFA / QSL)
• Forge -> None
• NeoForge -> None
  

Mods Feature

-> Increases the change for ominous vaults to give you a heavy core

Spawn Rate Percent

I did 2 test. For one world I used this datapack and got 2 heavy cores from the 5 ominous vaults I opened, then I tested with a normal world with no datapacks and got 0 heavy core from the 5 I searched so

It has a 20% Increase

Gameplay with and without the datapack (Sorry for the bad video quality)