Of course, to get the actual quest, you'll need to start the quest chain first.
When the mallet of Zul’Farrak is used at a gong in the Zul’Farrak instance, you summon Zahz’rilla, who you have to kill to complete the quest Gahz’rilla, which gives you the carrot on a stick trinket.
That's the one you carry into Zul'Farrak instance. You go somewhere else nearby (also not in an instance) and use the mallet to create a new mallet (the mallet of Zul’Farrak). Look at the sacred mallet page (below) for where it is, and how hard it’s going to be. there are some pretty confusing posts, but the short of it is this: You kill a guy (not in an instance) to get the mallet. This trinket is likely to stay in your inventory for the rest of the game, unless the burning crusade has changed that. The quest associated with this boss gives the carrot on a stick (increases mount speed 3%).
It is used to create the mallet of Zul'Farrak, which, in turn is used to summon a boss in Zul'Farrak. Kommentar von 38166A unique item called the sacred mallet is found here, and at some point in your WoW life, you’re going to want to get it.
