The Dark Reaper Crisis

The Dark Reaper Crisis was an event in which Luke Den, Obi-Wan Kenobi, Count Dooku, Cydon Prax, Mace Windu, and Luminara Unduli, all participated in.

During this time, the threat of the Dark Reaper being activated by Count Dooku flourished.

Battles

 * The Battle of Geonosis
 * The Battle of Rhen Var
 * The Battle of Raxus Prime
 * The Liberation of Kashyyyk
 * The Second Battle of Rhen Var
 * The Battle of the Thule Moon
 * The Battle of Thule

Outcome
Luke Den eventually battled the Dark Reaper after learning how to resist it's effects from Ulic Qel-Droma.

This event made Luke more arrogant and sure of his abilities, further setting him down his dark path.