For an online game's long-term success, balance is king. For massively multiplayer online games with dozens of character types and dungeons and raid instances, it’s also a massive headache.
This many years into World of Warcraft's life, balancing raids is a challenge Blizzard has tons of experience with. But even then it can be hard to get it just right. Blizzard rolled out two sets of hotfixes in two days last week, and many of the tweaks dealt specifically with player and encounter balance, particularly for the current end-game raid: Amirdrassil, the Dream’s Hope.
