Server is hardcore
Whether the server is in hardcore mode, where dying means being banned or put in spectator.
A Minecraft element (a check) in Server & admin. Needs the Basic plan or higher to go live; building and testing are free.
Example
When a player dies → If Server is hardcore → Broadcast a farewell.
Also called
hardcore, permadeath, one life
Works as a data pack?
No. This one needs the Elementium plugin on a Paper server.