public static boolean isSkeletonWarriorIron (
            SkeletonWarriorIron MMSkeletonWarriorIron) {
        if (MMSkeletonWarriorIron instanceof Skeleton) {
            Skeleton SkeletonWarriorIron = (Skeleton) MMSkeletonWarriorIron;
            if (SkeletonWarriorIron.getEquipment().getChestplate()
                    .equals(new ItemStack(307))) {
                return true;
            }
        }
        return false;
    }