"The only normal mode encounters that cannot be soloed right now as a DK are Kalecgos in Sunwell Plateau, Valithria Dreamwalker in Icecrown Citadel (unless you're a draenei with Gift of the Naaru), Conclave of Wind in Throne of the Four Winds, as well as Hagara the Stormbinder and Spine of Deathwing in Dragon Soul," Mionee muses. "That leaves quite a lot of soloable encounters. On a more general note, what's left to solo are the heroic versions of some encounters, or the 25-man versions of bosses that have only been soloed in 10-man."
"To give a rough estimate," she continues, "by the end of Wrath of the Lich King, I was doing Mount Hyjal; by the end of Cata, I had completed nearly every possible heroic encounter from Wrath (a few exceptions aside); and right now, I have completed everything in Cata aside from the three above-mentioned encounters."
Mionee gives us the inside scoop on soloing some of the game's toughest content and answers the question of whether death knights are really overpowered, after the break.