Release 1.0 (early access, stuff may break)

This is a plugin that clears the player's inventory when they lose their last life on Xcalibur8's lastlife plugin.
https://www.spigotmc.org/resources/last-life.91586/
Plugin requires PlaceholderAPI and LastLife
https://www.spigotmc.org/resources/last-life.91586/
https://www.spigotmc.org/resources/placeholderapi.6245/
Make sure that keepInventory is enabled on your server.
To do this run /gamerule keepInventory true as a server operator.