During Sung Jinwoo's battle against Kargalgan and his High Orc forces in Solo Leveling Season 2 -Arise from the Shadow-, episode 6, "Don't Look Down On My Guys", the necromancer unleashed his Shadow Army and made use of a new Skill he gained during his last visit to the Demon Castle, a Skill that directly affects the combat strength of his Shadows. The Skill is unique to the Shadow Monarch, and enables him to significantly buff his Shadows.