Do you want to get the most out of your character in PvE? BiS Gear (best in slot) is the list of the best items and enchantments you can get for your class / spec in PvE.
Thanks to the Classic WoW community and many contributors, you can find here the most optimized gear for each class and for each phase of WoW Classic.
Pre-Raid gear allows you to have the list of the best items you can find in dungeons in order to be ready to raid.
Phase 2 to 6 gear is the list of the most optimized piece of gear you can get for your class / spec, that you will find in raids like Molten Core, Onyxia, The Black Wing Lair, Zul'Gurub, AQ40 and Naxxramas.
Special thanks to Pingaan for this amazing work and for Relapse from wowclassicbis.com