With this Spigot plugin can you spawn an Entity they can unlimited be killed.
Supported Spigot versions: 1_8_R3, 1_12_R1, 1_13_R1, 1_13_R2
For all /ipig commands: infinitypig.command
/ipig add NAME TYPE
Add a InfinityPig Entity
Example: /ipig add example PIG
/ipig remove NAME
Remove a InfinityPig Entity
Example: /ipig remove example
/ipig list
Show all InfinityPig Entity names.