[WThieves]

(INVINCIBLE)
Try this:
After:

Quote:

SetPlayerHealth(i,100000);

do:

Quote:

SendClientMessage(i, COLOR_YELLOW, "HEREYOURTEXT");

That will make it show up in the chat only for the player.
But you have to change COLOR_YELLOW to a color you have
For the "You are not invincible anymore" i have no clue