Naxxramas has some awesome music, but the sheer amount of HP all of the bosses have is ... disconcerting.

This is quite easily the most epic boss summoning. Not because of any flashing lights or anything, but because this
gigantic skeletol dragon just appears out of nowhere when you step up close.

Supposedly we were hitting. I was never quite sure. Apparently the air under Sapph's stomach is particularily sensitive.

He dropped a lot of purples, most of which were awesome-looking even if I couldn't use any of them.

And of course, you can't go through Naxx without killing the endboss himself, Kel'thuzad.

He
hurts for a skeletol lich sorcerer. On Sapph we were fine for healing with Darkmoon Card: Heroisms, and a few Battlemaster enchants, but at the beginning of the Kel fight I had to pop out of catform to heal our two tanks.

Standing on Kel's throne after killing him. :D

Oh, yeah, and this guy. My group ported out of the battle before he was dead (grr), so I got to finish his 982348238 thousand hit points all by myself. My Mark of the Wild, freshly applied before the battle,
wore off well before I was done. And then he glitched and didn't give me any loot. Yah, I was mad.

In order to get to Naxx we went through Undercity. And when in Undercity, do as the Alliance do... The fight was over before it had begun, really. Setting Kel'thuzad loose in UC would be absolutely mean. He could murder everyone. Varimathras? Three hits and we'd killed him.
...but it still made this Hordie go >:(.