Are enchantments beyond Protection 10 effective?
So I've been playing on a full PvP rank up server running Minecraft version 1.5.2, and the maximum enchantment level available there is 25. However, I didn't notice any change between Protection 10 and 25.
Are enchantment levels beyond 10 any more effective than 10?
Best Answer
No, Protection type enchantments are capped, and the cap is fairly low.
Damage reduction based on Armor and Armor Enchantments has some peculiar mechanics which are detailed on the Minecraft Wiki page for Armor1 (some emphasis mine).
Each protection enchantment protects against specific types of damage. The amount of damage reduction depends on the Enchantment Protection Factor (EPF) provided by that enchantment.
[...]
The EPFs for each enchantment and level are the result of the following formula:
floor ( (6 + level^2) * TypeModifier / 3 )When a player or mob wearing armor is subjected to damage, the EPFs of all applicable enchantments are added together, capped at 25, multiplied by a random value between 50% and 100%, rounded up, and capped again at 20. The damage is then reduced by 4% per point of total effective EPF (for example, a total effective EPF of 20 reduces damage by 80%).
The "TypeModifier" in the equation depends on the enchantment itself, and is 0.75 for Protection, 1.25 for Fire Protection, 1.5 for Blast and Projectile Protection and 2.5 for Feather Falling.
Note how the EPF is capped twice. We can't do anything about the random number multiplication and the subsequent second cap, but we can make sure to have an EPF of at least 25, to ensure maximum Protection. Using the above formula, we can calculate the EPF for a single armor piece with a certain Protection enchantment level.
level | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | ...
EPF | 1 | 2 | 3 | 5 | 7 | 10 | 13 | 17 | 21 | 26 | 31 | ...
From this table, it is immediately evident that you can reach the EPF cap with a single Protection X enchantment. Anything beyond Protection X has no effect on the game mechanics.
Using a full set of armor, and optimizing for lower enchantment levels, you can reach cap with 3 Protection V and 1 Protection IV enchantment (3*7+5=26).
1 This part of the page has been roughly the same in March 2013, when 1.5 was released.
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How much damage does Protection 10 Reduce?
If the total protection enchantment levels on said armor adds up to 10, they would provide 40% damage reduction. This would equate to a result of 88% damage reduction, as it stacks multiplicatively rather than additively (80% + 40% * (100% - 80%), rather than 80% + 40%).What is the max enchant for protection?
The maximum level for the Protection enchantment is Level 4. This means that you can enchant an item with up to Protection IV.Is protection the best enchant for armor?
Protection is better, but there are sometimes other factors you should take into account. If you fall often in lava, it would be better to put Fire Protection on your armor. If you die often from creeper explosions, put Blast Protection armor on. Note: More than 20 Enchantment Protection Factor (EPF) is useless.Do Protection enchantments stack?
Protection enchantments from multiple pieces of armor stack together, up to a calculated maximum. Each protection enchantment protects against specific types of damage.Best Enchantments For All Armor and Items in Minecraft
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Answer 2
If you want to calculate the EPFs of an Armour Set, you must first add then and then round them. You actually only need 2 Protection IV and 2 Protection V, because:
Protection IV EPF = ((6+4^2)*0.75/3) = 5.5
Protection V EPF = ((6+5^2)*0.75/3) = 7.75
So 5.5+5.5+7.75+7.75=26.5 which is above the 25 cap and should provide maximum protection.
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