Wowhead.com reports that only 37 guilds have successfully killed Ragnaros on the 25-man heroic mode. A nerf was incoming, and today it hit Azeroth.

The health points of Ragnaros was reduced to 246.9 million from its previous 290 million, while at a 10-man he has 74.2 million.

Beth'tilac also saw a nerf, as its aura in phase 2 is now resistible which will reduce the dealt damage as fire resistance and aura mastery will help greatly.