Dark Reaper

The Dark Reaper is a weapon crafted during the Great Sith War (4,000 BBY).

As its name implies, it was so powerful that no platoon could withstand it. The Dark Reaper required tremendous amounts of power in order to function. Its power source is called the Force Harvester. In order to defeat the Dark Reaper, an ancient Jedi Knight named Ulic Qel Droma taught the Jedi Knights how to withstand the Dark Reaper's effects.

During the Clone Wars, Count Dooku, Qui-Gon Jinn's master, and his mercenary Cydon Prax dug up on Raxus Prime and found the Force Harvester in order to revive the Dark Reaper to destroy the Galactic Republic. He used Cydon Prax to activate the Force Harvester to destroy the[forest on Kashyyyk Moon. Count Dooku took off and found the pieces of the Dark Reaper. He went to Thule and revived the Dark Reaper. On Rhen Var, Anakin Skywalker went to the monument of Ulic Quel Droma for information on how to defeat the Dark Reaper. Shortly after the Dark Reaper was revived, he withstood its effects and redefeated it.