public static void spawnWraith (Location loc, int amount) {
        int i = 0;
        while (i < amount) {
            LeatherArmorMeta meta;
            ItemStack stack = new ItemStack(299, 1, (short) - 98789);
            meta = (LeatherArmorMeta) stack.getItemMeta();
            meta.setColor(Color.fromRGB(52, 52, 52));
            stack.setItemMeta(meta);
            Zombie wraith = (Zombie) loc.getWorld().spawnEntity(loc, EntityType.ZOMBIE);
            wraith.getEquipment().setHelmet(new ItemStack(Material.SKULL_ITEM, 1, (short) 1));
            wraith.getEquipment().setChestplate(stack);
            wraith.getEquipment().setItemInHand(new ItemStack(Material.IRON_HOE, 1));
            wraith.getEquipment().setHelmetDropChance(0.0F);
            wraith.getEquipment().setChestplateDropChance(0.0F);
            wraith.getEquipment().setItemInHandDropChance(0.0F);
            wraith.addPotionEffect(new PotionEffect(PotionEffectType.JUMP, 2147483647, 2));
            wraith.addPotionEffect(new PotionEffect(PotionEffectType.SPEED, 2147483647, 1));
            wraith.addPotionEffect(new PotionEffect(PotionEffectType.INVISIBILITY, 2147483647, 10));
            wraith.addPotionEffect(new PotionEffect(PotionEffectType.INCREASE_DAMAGE, 2147483647, 1));
            wraith.addPotionEffect(new PotionEffect(PotionEffectType.FIRE_RESISTANCE, 2147483647, 10));
            wraith.addPotionEffect(new PotionEffect(PotionEffectType.DAMAGE_RESISTANCE, 2147483647, 2));
            wraith.addPotionEffect(new PotionEffect(PotionEffectType.WATER_BREATHING, 2147483647, 1));
            wraith.setCanPickupItems(false);
            i++;
        }
    }