Undead Guide  Undead Abilities  Important Undead  Undead History
World of Warcraft -Undead Abilities
All Undead share the following characteristics:

Will of the Forsaken: Activate to become immune to fear, sleep, and charm effects. This is an insanely useful trait, especially for PvP, so expect it to be "nerfed" soon after launch.

Cannibalize: Increase health regeneration while consuming a corpse. Again, a very useful characteristic, although probably not as good as the Troll's Regeneration.

Underwater Breathing: Underwater breath increased. There only a few places where this will come in handy -- mostly on quests, but is nice nonetheless.

Shadow Resistance: Increase Shadow Resistance. Not as useful as it appears because of the comparative lack of Shadow-wielding monsters. Great for facing quests that take you against the Scourge or warlocks in PvP, though.

The Undercity:

One of the six great cities of the World of Warcraft, the Undercity lies far beneath the ruined capital city of Lordaeron. There the royal crypts have been turned into a bastion of evil and undeath. Arthas originally intended the Undercity to be the Scourge's seat of power, but the budding city was abandoned when he was recalled to aid the Lich King in distant Northrend. In Arthas' absence, the Dark Lady, Sylvanas Windrunner, led the rebel Forsaken to the Undercity and claimed it for her own. Since taking up residence, the Forsaken have worked to complete the Undercity's construction by dredging out the twisted maze of catacombs, tombs, and dungeons that Arthas began. The Undercity is probably the friendliest hub city to navigate -- it's basically a circle. It's also the smallest of the hub cities, so it takes much less time to get in, accomplish something, and get out.