This Datapack will be used to buff Unholy Death knight, but it will also give the ability to change the values of all other death knights spells if need be.
Install in a world
Choose the world versionUse the Minecraft version selector in the download panel.
Download the ZIPKeep the archive intact unless the project explicitly says otherwise.
Add it to the worldPlace it in that world's datapacks folder, then reload the world.