The Hungering Cold is a tanking one-handed sword and also a great offhander for rogues. Fury warriors benefit from this item as well, as its fast speed makes them generate rage significantly faster than they would have with a slow weapon such as Gressil, Dawn of Ruin.
The model of the Hungering Cold was used in the South Park Episode "Make Love, Not Warcraft". The Sword of a Thousand Truths, as it was called in the episode, had to be delivered by Stan's dad in order to defeat "That which has no life," referring to a man who had played World of Warcraft every hour of every day for a year and a half. The Sword of a Thousand Truths is designed to cast a massive Mana Burn, draining an enemy's entire mana pool.