Adamantite Cleaver

The Adamantite Cleaver is a two-handed axe with a bonus to agility, stamina, and attack power.

Source
This item is crafted by blacksmiths with a skill level of 330. The components are:
 * 8 Adamantite Bar

are are sold for in limited quantities by the following merchants:

Aaron Hollman in Shattrath City

Arras in The Exodar

Eriden in Silvermoon City