A simple plugin to restore the health of a player when it kills another player. You can specify (config.yml) in which worlds the plugin should work and custom messages to send to the killer and killed players.
Latest release: https://poggit.pmmp.io/p/KillHealth
Latest development phars: https://poggit.pmmp.io/ci/PocketMineItalianDevs/KillHealth/KillHealth