Scythe of Elune

The Scythe of Elune is a mystical artifact created from Goldrinn’s fang and the staff of Elune. It is described as an ancient weapon - a twisted and gnarled branch of wood covered with runes that could be older than even the Kaldorei.

Curse of the Worgen
Belrysa Starbreeze and Ralaar Fangfire created the scythe by affixing one of Goldrinn's fangs to Belrysa's staff. Ralaar and the Druids of the Pack sought to temper the uncontrollable rage inherent in the druid Pack Form by willingly submitting to the energies of the Scythe of Elune. Rather than abate the druids’ fury, however, the weapon transformed Ralaar and his followers into worgen: bestial humanoids enslaved by their own primal instincts. Blinded by all-consuming rage, Ralaar’s druids tore through friend and foe alike during battle with the satyrs. Night elves wounded by the unruly beasts contracted a virulent curse that turned them into worgen as well.

Desperate to stanch the affliction’s spread, Archdruid Malfurion Stormrage mournfully banished the worgen to a pocket dimension of the Emerald Dream, where they would be in peaceful slumber for all eternity.

Velinde Starsong
Velinde Starsong was later granted the scythe from Elune herself to fight against the demons in Felwood and Ashenvale. By further channelling the energy of the scythe, the barriers of time and space weakened, and she was able to draw the worgen into the world of Azeroth. First, they followed her into battle, and with their brutish strength at her command, they tore into the demons of Felwood. Later, she noticed, that though she had not summoned additional worgen, their numbers continued to increase. It was as though the scythe no longer required her intervention for the summoning process.

Velinde heard that the archmage Arugal had also summoned worgen. She travelled to the Eastern Kingdoms to meet with him, hoping he could provide help. In Duskwood, Velinde disappeared after losing the scythe within a cave. The dark mage Morganth and Black Riders from Deadwind Pass were known to be searching for it.

Gilneas
A group of night elves found the Scythe of Elune in Duskwood, then brought it to Gilneas mere days later. In the worgen starting experience, players must recover the scythe from the Forsaken, who stole it from the druids in the Blackwald.

Quotes
The defunct quest sends the player to the ruined shrine of Mel'thandris to discover the origins of the 'mysterious wolf-men' who have overtaken the area. Upon viewing the tome of Mel'thandris, you see a vision of Velinde Starsong pleading with Elune and presumably being granted a scythe.

''The numbers of my companions dwindles, goddess, and my own power shall soon be insufficient to hold back the demons of Felwood. Goddess, grant me the power to overcome my enemies! Hear me, please, my need is desperate and cause is just! What... what is this? Could this be the answer to my prayers? Elune has granted me a weapon--this scythe--to defeat the demons.''

Jitters' Completed Journal contains a passage about the events immediately following the re-discovering of the Scythe of Elune. The unfortunate people there to witness it were afflicted by a strange phenomena:

''After the Scythe was freed, a change rippled through the mine. Light from our flickering torches warped, and the strength of our voices seemed beyond our control. Sometimes a man's whisper roared through the tunnels forcing hands on ears, and sometimes our shouts barely travelled a few steps before diminishing into a hint on the wind.''