Be a Death Knight in the World of Warcraft, Runeforging is regarded as the equivalent of Rogue poisons. By using a runeforge - which only exist in ebon hold, the death knight starting and trainer area, you are able to imbue your rune-weapon with an 'enchant' that lasts until changed. This provides very substantial passive combat bonuses to death knights, and you'll want to choose which runeforged-effect that will best compliment your play-style.
   In the Wrath of the Lich King, there is going to be a new entity all together called Runeforging that will allow Death Knights the ability to modify their weapons with certain runes instead of having rune swapping. The cool-down on these runes is yet unknown and it seems that the biggest drawback so far is that you must teleport back to Ebon Hold in order to modify the rune weapons. Other than that, it seems that World of Warcraft's Wrath of the Lich King is going to be full of surprises and new items that are sure to delight its over nine million subscribers.
   For Death Knight, on the hand his runeforging skill will allow him to modify their rune weapons with different runes with the rune forge in Ebon Hold. It has an Instant cast.
   So far, the Runeforging of Cinderglacier is showing as a 5 second cast and will affix the Death Knight's rune weapon with a rune that has a chance to increase your Shadow and Frost spell damage by 10% for 15 seconds. This rune of cinderglacier modification will require a rune forge in Ebon Hold.
The Rune of Frostfever is showing as a 5 second cast and will affix the Death Knight's rune weapon with a rune that has a chance to inflict a disease that causes damage by Frost and will lower the attack power by 10% for 20 seconds. This rune of frostfever modification will require a rune forge in Ebon Hold.
The Rune of Spellbreaking is showing as a 5 second cast and will affix the Death Knight's two handed rune weapon with a rune that will deflect 5% of all spell damage. This rune of spellbreaking modification will require a rune forge in Ebon Hold.
The Rune of Lichbane is showing as a 5 second cast and will affix the Death Knight's rune weapon with a rune that has a chance to strike the undead for extra damage by fire and will stun them for 5 seconds. This rune of lichbane modification will require a rune forge in Ebon Hold.
The Rune of Swordbreaking is showing as a 5 second cast and will affix the Death Knight's two handed rune weapon with a rune that has a chance to increase your Parry chance by 3%. This rune of swordbreaking modification will require a rune forge in Ebon Hold.
The Rune of Fallen Crusader is showing as a 5 second cast and will affix the Death Knight's rune weapon with a rune that has a chance to heal you for 3% and to increase your total strength by 30% for 15 seconds. This rune of fallen crusader modification will require a rune forge in Ebon Hold.
On the other hand, the runeforging skill for Death Knights enables them to imbue their Rune weapon with a special Rune that gives the Death Knight certain benefits, depending on the rune they chose to use.
Death Knights must be able to carry out this process at a Rune Forge in Ebon Hold. At present, the cost of the Runeforging skills is blank, simply indicating that reagents are needed.