Torchlight III

The Cosmic Garb set is an armor set specific to the Railmaster. The set consists of six armor pieces (head, chest, legs, shoulders, gloves, boots) that must be equipped at the same time. It is unlikely you will acquire a full set prior to finishing the game or reaching level sixty. Farming levels in Fazeer's Dun'djinn (the end game) that give a +50% gear luck modifier will be your best bet in finishing up the set. Set pieces can be acquired through the gambler.

Due to recent updates, Fazeer's Dun'djinn is no longer the best way to gather legendary sets. All set pieces are now available in end-game dungeons making gathering specific region sets more difficult. Bosses now have an increased chance of dropping legendary items and the bonus gear luck modifier from playing on ridiculous difficulty has increased. The Hyvid region has the most easily accessible bosses, so find a good route within the region's areas and focus on taking out bosses. Most overworld levels have multiple bosses to kill. Ignore mobs and take advantage of phase beasts. Bosses will respawn after traveling to two other areas. The layout of areas will remain the same unless you exit the game. Remember to take advantage of gear bonuses offered by the legendary chest pieces of region sets. There has been some reports that returning to campaign areas with a level 60 character decreases the chance of legendary items dropping. I cannot confirm this to be true, as I received comparable drops with both mid and max leveled characters.

All set pieces can be acquired through the gambler and gear bundles given through contract completion. With recent updates the chance of legendary items dropping from rare gear bundles has increased.