Here are the items for getting your suit to max luck. What luck does is intensifies the quality and property weight of the random stats given by the loot items. But when it comes to things like roof artifact drops, the top damage players are given higher chances to get the drops, and the luck suit is used for the actual loot drop items. The current max luck from a completed suit is 2530 Luck. If you then add in the Luck bonus from the 10th Anniversary Sculpture, which is a base 200 Luck plus 50 Luck for each year of account age, thus resulting in a maximum attainable amount of 1200 Luck (on a 20-year-old account), the total becomes a Total: 2530 + 1200 = 3730 Luck.