I'm new to the /tag command, in point 3 you said I can target it with @e[tag=world_name], but this tag is always going to change. Is there like a way to access an exact tag? Thanks, by the way.
EDIT: Finally, I did it. I can say the world's name in chat. The way I did it is by telling the player to modify the CustomName, and then using /execute as armor stand run tellraw @p {Selector:@e[type=armor_stand]
It wasn't easy, but it's done.
