Death Knight is high-level race in World of Warcraft. You can create it as you are at least 70 level. Death Knight as the newest race will bring players more interesting of fighting and doing quests. You can operate it to challenge more strength bosses and gain better rewards, such as WoW gold, infrequent items, exclusive equipments and experience (WoW power leveling). Read this article to know more information about Death Knight of WOTLK.

Creation and initial play

Death Knights will start in a floating citadel similar to Naxxramas at level 55, and go through a series of quests that will establish their story and background in the Eastern Plaguelands. If you are a WoW powerleveling crazy trainer, you should like Death Knight in Naxxramas where you can gain more benefits including enough XP (WoW power-leveling). All Indications are that Blizzard still plans to allow all races to be Death Knights, as Worldofwar.net's reporter saw Tauren, Dwarf, Gnome, and Orc Death Knights.
You must have an existing character of level 55 or higher to create a Death Knight.
You can create one Death Knight per realm per account.
You will not need to do any unlocking quests or sacrifice a character before you can create a Death Knight.
The Death Knight will start with a wide range of abilities, as it is assumed that someone with a level 55 character has the experience to handle them right off the bat.
They will start with a 60% speed summoned Death Charger as a land mount, which be upgradable via quest much like Warlock and Paladin mounts.

Death Knight Role

As expected, Death Knights will be DPS/Tank Hybrids. As previously known, they will not use shields, but will rely on a high parry rating and the proper presence (likely the Frost one from worldofwar.net's report) to mitigate damage. As DPS, they will not do as much damage as a pure DPS class, but will bring extra flavor and utility to the table in the form of some minor crowd control, ghoul pets, and the use of diseases to deal extra damage and cause debuffs. Worldofwar.net also mentions that Tom Chilton, in his Death Knight presentation, told them that they are leaning toward letting all tank types do more DPS while tanking. If you are Death Knight, the most important problem is how to train it for collecting more XP to complete WoW power leveling quickly. Of course, more and more players choose to buy WoW powerleveling which actual is an easy way.

Final Thoughts

For the most part, we got most of what we expected out of the DKs, plus a lot more clarification and a look into some intriguing new aspects of their abilities and mechanics such as Runic Power and Ghoul summoning. I did notice that some old leaked abilities such as the Unholy Aura spell didn't receive any play, but if that's because they were scrapped, fake, or just not mentioned, we probably can't say for sure until the Beta drops. All I know for sure is that I am hooked, and am more dedicated than ever to having a new main when WoTLK hits.