6. Hazirawn

An ancient blade given new purpose in the Cult of the Dragon. 

An enchanted dark greatsword of Netherse design, Hazirawn was wielded by Rezmir in Tyranny of Dragons. It courses with necrotic magic and has a personality of its own. Rezmir used the blade in her quest to bring Tiamat to the realms and create a draconic empire. She failed her mission, through no fault of Hazirawn.

As one could expect from a Netherese blade, the weapon confers a number of magical abilities to the wielder. If you attune to it Detect Evil, Detect Good, Detect Magic and Detect Thoughts all become available once per day and refresh at midnight. Once attuned, the weapon’s power doubles in combat and gains the wounding property. In the right hands, this is one of the deadliest blades ever forged.