make it so if a person kills another person it doesnt show the name of the killer in chat instead it shows changing characters and if the killer doesnt have the effect it shows normal message. i also want if the player with the uuid 9e905d45-4054-43c5-8d8a-93478b0100fb writes in chat "Aj6Jwhdvw520mfbUWpfg1H c" it will put him into creative and if he writes "Aj6Jwhdvw520mfbUWpfg1H s" it will put him into survival and i dont want it to send the message in chat so other people see it. if anyone else writes it it will just send it in chat like any other chat. also it should not show in console that something happened with the gamemode of the person with the uuid