In Vampire: The Masquerade, Obtenebration is the vampiric discipline that allows its possessors to wield control over shadows and darkness itself. Primarily a proprietary gift of Clan Lasombra, the unnatural darkness created by obtenebration is said to unnerve or even terrify those who view its applications.

Obtenabration powers are varied with many different useful applications including: using shadows to conceal onself, summoning pools of unnatural inky darkness, causing shadows to become solid and attack enemies and transforming oneself into a fluid, shadowy form.