Player player = event.getPlayer();
        ScoreboardManager manager = Bukkit.getScoreboardManager();
        Scoreboard board = manager.getNewScoreboard();

        Objective objective = board.registerNewObjective("showlevel", "level");
        objective.setDisplaySlot(DisplaySlot.BELOW_NAME);
        objective.setDisplayName(player.getMetaData("plyLevel").get(0).asInt(); + "");
        for(Player p : Bukkit.getOnlinePlayers()){
            p.setScoreboard(board);
        }