The Formal Dress Outfit1 is a reward for finishing quest with the final boss- Lord Retro.- 25 Years of Tibia Quest2
Upon completing the quest we will receive base only. In the order to get full Outfit we have to use items:
Brass Button- For First Addon
Decorative Plume - For Second Addon
Both of the items are very rare loot from Lord Retro Boss (Retros Tresure) and will not disappear once used- can be used by many characters.
Upon receiving Full outfit- you will receive achievement " Sharp Dressed"
Teaser of 25th Anniversary:
However, this experience will not only encompass the dungeon, as a new quest will send you across Tibia, and eventually set you against the boss Lord Retro. The rewards for your efforts are a new backpack, mount, and outfit, as well as Theons. 3