I want do do something like "(playername) has entered the arena!"
%1 is the variable to use for player names.
So In the events, I would type something like, "%1 has entered!"
No, he dosnt mean everyone sees their own name, he means if someone named BrickyBob entered the arena, then it would broadcast to everyone "BrickyBob has entered the arena!" instead of their own name.
As far as I know, there is no way to do this. %1 will show a clients name. No two people will see the same thing when you put like "%1 has one the game!".