We all know that Dungeons Sets appeared on the old world of World of Warcraft. They are divide into 3 tiers. Dungeon Set 1 is the first armor set you can get in WoW. If you haven’t experienced early WoW, you may learn the former design style of WoW by these dungeon sets.
You can farm Dungeon Sets 1 from Blackrock Spire, Stratholme and Scholomance.
After collecting D1, you can update them to Dungeon Set 2 by completing the quest chain – An Earnest Proposition. But the quest chain hasn’t been removed at patch 4.0.3. So, D2 can no longer be acquied.
Dungeon Sets 3 are from the level 70 5-man dungeons of TBC, such as Mechanar, Botanica, Arcatraz.