Fallout 76 legendary mods

In Fallout 76, legendary weapons and legendary armor, collectively known as legendary items, are items with special, permanent modifiers applied.

Legendary items have one to three special modifiers, affecting combat or character status. They may only be found with random effects, being earned as quest rewards, looted from legendary enemies, or bought from the Purveyor.

Normal enemies may occasionally spawn as legendary enemies. When killed, legendary enemies will drop at least one legendary item with at least one effect. For each legendary "star" an enemy has, a dropped legendary item may have up to that amount of effects. Legendary enemies may drop multiple legendary items.

The specific type of effects a legendary item will be randomly generated from the options in the relevant tables below. The number and type of effects generated are not affected by any SPECIAL traits such as Luck. Legendary effects may only be generated randomly and cannot be obtained elsewhere. The player character cannot craft or apply legendary effects to existing items. Legendary modifiers are not found as loose mods like standard modifications for weapons or armor. Legendary items in Fallout 76 cannot be scrapped, but they can be modified, dropped, traded to other players, and sold to vendors. The durability and normal statistics of legendary items remain the same as non-legendary weapons and armor.

Characteristics
Three types of legendary modifiers exist: prefix, major, and minor modifiers. A prefix modifier appears on all legendary items, taking up the first "star." The name of a legendary weapon will include the prefix modifier's name. Major modifiers comprise the second star of a legendary item and minor modifiers comprise the third. In general, major and minor modifiers don't affect a legendary item's name. Legendary weapons and armor use different sets of modifiers and cannot use modifiers from the other's item type.

Legendary items can have a maximum of one modifier per category, based on the number of stars:
 * A 1-star legendary will have a prefix modifier.
 * A 2-star legendary will have a prefix modifier and a major modifier.
 * A 3-star legendary will have a prefix modifier, a major modifier, and a minor modifier.

Minor modifiers

 * Item adds modifier name as prefix
 * Weight reduction effects on armor stack up to (20%/40%/60%/80%/90%) for each type, instead of a complete 100% reduction. When used with any weight reduction perk, the cap remains at 90% reduced weight. The reduction effects are additive but do not exceed a 90% reduction. For example, combining the 75% reduced junk weight perk with 20% reduced junk weight armor does not cause an item weighing 10 pounds to weigh .5 pounds (10 * 0.05) or 2 pounds (10 * 0.25) * 0.8) but rather 1 pound (10 * 0.1).

Weapons

 * Explosive: Patch 1.0.5.10 reduced the damage bonus from +100% to +20% of base weapon damage, with explosive radius damage.
 * Two Shot: Patch 1.0.5.10 reduced the damage bonus from +100% to +25% of base weapon damage.

Armor

 * Assassin: Patch 1.1.4.3 reduced the chance of the legendary effect applying in combat from 100% to 75%.
 * Cavalier: Patch 1.1.4.3 reduced the chance of the legendary effect applying in combat from 100% to 75%.
 * Sentinel: Patch 1.1.4.3 reduced the chance of the legendary effect applying in combat from 100% to 75%.