/ws toggle -- Completely disable or enable Wither spawning
/ws killall -- Kill all Withers loaded in the server
/ws list -- List uuid, location, and time of all Withers found in database
/ws radiuskill -- Kill all Withers within killRadius set in configuration file
/ws radiuskill # -- Replace # with an integer above 0 to kill Withers within specified radius
/ws reload -- Reload configuration file
witherspawn.admin -- Allows use of commands
witherspawn.bypass -- Completely bypass restrictions and allow Wither spawning
witherspawn.deny -- Completely deny Wither spawning unless player has witherspawn.bypass permission or op
witherspawn.notify -- Receive message when players attempt to spawn Wither but is disabled/prevented or when successfully spawned