Fortune

Fortune is an enchantment applied to mining and digging tools that increases the amount and/or chances of specific item drops. It does not increase experience drops.

Usage
For coal ore, diamond ore, emerald ore, lapis lazuli ore, nether gold ore, and nether quartz ore, Fortune I gives a 33% chance to multiply drops by 2 (averaging 33% increase), Fortune II gives a chance to multiply drops by 2 or 3 (25% chance each, averaging 75% increase), and Fortune III gives a chance to multiply drops by 2, 3, or 4 (20% chance each, averaging 120% increase).

Generally speaking, Fortune gives a weight of 2 to a normal drop chance and adds a weight of 1 for each extra drop multiplier. The drop multipliers are the integers between 2 and, inclusive.

The formula to calculate the average drops multiplier is, which means Fortune IV gives 2.67x drops on average, Fortune V gives 3.14x drops on average, etc.

Glowstone, melons, nether wart, redstone ore, sea lanterns, and sweet berries use a, meaning each possible drop amount is equally likely to be dropped. Fortune increases the maximum number of drops by 1 per level. Keep in mind that glowstone has a maximum drop of 4 glowstone dust, sea lanterns have a maximum drop of 5 prismarine crystals, and melons have a maximum drop of 9 melon slices. If a drop higher than these maximums is rolled, it will be rounded down to the cap.

Beetroots (seeds only), carrots, potatoes, and wheat (seeds only) use a. Fortune increases the number of tests for the distribution, and thus the maximum number of drops, by 1 per level.

Fortune increases the probability of flint dropping from gravel; saplings and sticks dropping from leaves; apples dropping from oak and dark oak leaves; and, gold nuggets dropping from gilded blackstone. These rates are hardcoded, and using higher levels of Fortune unobtainable in survival mode causes the blocks to use the rates for Fortune III.

Grass and ferns have a set chance to drop wheat seeds which is not affected by Fortune. If the drop occurs, Fortune increases the maximum amount of seeds that can be dropped by 2. , twisting vines and weeping vines use this pattern, though the chance for the drop to occur is different.

Incompatibilities
Silk Touch and Fortune are mutually exclusive. If commands are used to apply both Silk Touch and Fortune to an item, the Silk Touch enchantment takes precedence over the Fortune enchantment for blocks affected by both enchantments.

Data values

 * id = 18

History
Fortuna Enchantement 幸運 (エンチャント) Fortuna 时运