Magical Protection enchant

Currently there is no way in the game to block the damage from magical attacks. (Aside from Protection, which works agains most damage types) I propose a new armor enchantment, which would do exactly this, and work very simmilarly to he other protective enchantments. What would it do? - Negate some of the damage of potions and effects(wither effect, poison, instant damage, and if worn by an undead mob, it would negate instant health instead) - Reduce the damage from enchantments. For example, if a Sharpness enchant gives the sword plus 3 attack damage, this enchant would reduce that to 2.(Obviously numbers should be tweeked). For undead mobs it would work the same against Smite, and it would work against Power enchanted bows as well. - Lastly it would reduce the damage from the magical attacks of mobs. For example, the jaw attack thingy of the evokers; the fireball attack of the enderdragon and the damage of its breath.