Minecraft wiki entry for Armor, associated text: It is possible using /give to obtain armor with an enchantment level higher than what is normally obtainable via normal survival. Using this method, a player could give themselves, for example, a full set of diamond armor with a Protection V enchantment on every piece. Following the algorithm above, we find that, because Protection V has an EPF of 5, the armor reaches the maximum EPF of 20 for all types of damage. Any higher Protection enchantments could be used to reach the cap with just one level XX (20) enchantment, rather than having a full set of enchanted armor, but would be wasted if all pieces shared the same level enchantment.