WoW's 10th Anniversary

WoW's 10th Anniversary is a Feat of Strength achievement earned for logging in during the 10th anniversary of World of Warcraft between November 21, 2014 to January 5, 2015. This anniversary had a temporary Tarren Mill vs Southshore 40vs40 battleground, a temporary Raid Finder-style revamp of the Molten Core raid to obtain the Core Hound Chain mount, a chance at the Hatespark the Tiny pet, and a small chance at the Flames of Ragnaros from Ragnaros. Everyone also received a Molten Corgi pet in the mail.