public int id;
    public void onOpen(){
        Set<ArenaPlayer> set = match.getPlayers();
        for (ArenaPlayer arenaPlayer : set) {
            Player p = (Player)arenaPlayer.getPlayer();
            p.setExp(15);
             id = Bukkit.getScheduler().scheduleSyncRepeatingTask(plugin, new Runnable(){
                public void run(){
                p.setExp(p.getExp() - 1);
                if(p.getExp() ==0){
                    Bukkit.getScheduler().cancelTask(id);
                    Bukkit.dispatchCommand(Bukkit.getConsoleSender(), "kill " + p.getName());
                //TODO: hook
                }
                }
                },20L,20L);




    }