The Final Axe of Power is an upgraded version of the well-known Final Axe. It's additional bonuses offer high Attack ratings and damage, as well as a confusion secondary ability. This axe is sought more than it's predecessor.
The Final Axe of Power is not a droppable item, unless on PVP or the Nether Realm FFA. It can be made with a [Final Axe] and [Powerforge Orb] at 95 Runeforging. It can also be made from trading in a [Final Axe] to a Power Core Dealer for 100 to make the item itself.