- Plate-wearing tank/DPS hybrid
- Upon reaching level 80 and embarking on a quest "similar in difficulty to the Warlock epic mount quest," the ability to create a new Death Knight character will be unlocked.
- Starts around level 60 or 70, "intended as an alternative, advanced class for end-game use only"
Rather than using rage, energy, or mana, Death Knights have a special "rune sword" displayed beneath their health bar, onto which the player can etch six different runes (choose between Frost, Blood, and Unholy). Different abilities require different mixes of runes, and using abilities consumes the requisite runes until a cooldown timer causes them to be available again.
As far as I can understand, that sounds interesting. And difficult.
Update: Mike Schramm, here from BlizzCon. 1up missed one thing: in the video we just saw, Death Knights summoned pets (yup, just like the Diablo Necromancers). More info coming-- we're planning on liveblogging the expansion demo in about an hour, so stay tuned!
Update 2: More information from the live blog behind the cut.