Entity is alive
Whether an entity is still in the world and not dead. A removed one is not alive.
A Minecraft element (a check) in Entities & mobs. Needs the Basic plan or higher to go live; building and testing are free.
Example
Every 5 seconds → If Entity is alive (the boss) → Keep the fight going.
Also called
alive, still there, exists, dead, valid
Works as a data pack?
Yes. A vanilla data pack does this exactly as the plugin does.
What you give it
- Entity