Gorehowl is the epic-level battleaxe that the demon Prince Malchezaar drops in the raid on Karazhan in World of Warcraft: The Burning Crusade. Now it exists in real life, thanks to Tony Swatton, the master maker of other video game arms.
Blizzard commissioned this item and the video above showing its creation. Skip to 6:48 if you want to get to the final reveal and the obligatory smashing, slicing and chopping of smashy, slicy and choppy stuff.
For more from the Man at Arms series see these replicas of swords from Final Fantasy 7, Final Fantasy 10, Fire Emblem, God of War and Halo as well as a re-creation of the hidden Phantom Blade used in Assassin's Creed Unity.