Bukkit

Limit player item drops.

If the specified entity exists when the chunk is unloaded, delete the entity

Fire a falling block from a dispenser

Teleport as a spectator mode

Change player display name in config.yml

Add a command to send a message to Discord

Send TPS information to Discord or Server Log

Warn if the player has an instant death potion

/effectgui Show effect list GUI

send the time signal