Heroic emp actually bugged out for me (I think?) Was really disappointing, actually... He dropped Abom, I'd already burned my silences, so I killed it expecting to die. I had a full board with Kel'Thuzud and lethal next turn.
Emp used his 30 damage hero power on KT instead of me.And I won in a really unsatisfying fashion
I went back just for good measure and have now beaten him now on several classes - Paladin with Aldor Peacekeeper on his wife and early Argent Protectors and Minibots, Priest with Mind Control, Rogue overloaded with early control, etc.
I wouldn't be surprised to see Kel'Thuzad get the Alexstraza treatment, or at least seeing a significant AI change. I 1-shot all the normals and all heroics but Emporer, and many of them were built with just surviving until I could drop Kel'Thuzad. The AI just never seemed to prioritize him effectively, which makes his value just stupid and insane. Yeah let me sacrifice all my cards, get them all back, and just watch you ignore Kel'Thuzud again!
What I will say is that the bosses were more
funthan Naxx this time. Overloading a deck with all your 6+ cards for Dark Iron Arena is just fun. The Mage class challenge was also particularly fun ^_^