@EventHandler
    public void onEntityDamageByEntity(EntityDamageByEntityEvent event) {
        if (event.getEntity() instanceof Zombie) {
            Zombie zombie = (Zombie) event.getEntity();
            if (event.getDamager() instanceof Arrow) {
                Arrow strzala = (Arrow) event.getDamager();
                if (event.getDamage() >= zombie.getHealth()) {
                    int randomNumber = random.nextInt(100);
                    if (randomNumber <= 99) {
                        List<String> Wylew = new ArrayList<>();
                        Wylew.add("Pierwsza linijka");
                        Wylew.add("Drugi linijka");
                        Wylew.add("Kosmo trzecia linijka");
                        zombie.getWorld().dropItem(zombie.getLocation(), ItemStackUtils.get(Material.DIAMOND, 1, "KOSMODUPKA", Wylew));
                        Bukkit.broadcastMessage("Otrzymales KOSMODUPKE!");
                    }

                }
            }

        }
    }