When magical item drops from monsters or bosses, luck gives a chance for the item to advance one rarity, for example if Epic rarity was dropping, it will become a Legendary.

Additionally, it will increase chance of getting an Artifact when Enchanting or if a Boss drops a legendary item (Does not apply to regular mobs).

• Magic 1-5
• Rare 5-10
• Epic 10-15
• Legendary 15-20

Monsters and bosses that drops loot will have the combined luck score of everyone nearby as a % chance to advance rarity. If the combined score of 3 players is 80, there's 80% chance for all dropped magic items advances one level, including boss loot.

Luck chance have diminishing returns, where as 1000 Luck will be unnoticeably better than 100.

• Mid-point: 40.
• High-end: 80.

• When enchanting: Luck is the combined score of your currently equipped armor.
• Against bosses: Luck is the combined score of all nearby players.

Formula: setItemDropChance *= 1f + (0.30f / (1f + Mathf.Exp(-(luckFactor - 0.4f) / 0.1f)));

LuckFactor = Luck / 100

Multiplier is multiplied to the original Artifact Chance