Blackout

Blackout is a debuff which greatly decreases the player's light vision. It can be compared with the Darkness debuff, although the effect is much more severe. While inflicted with Blackout, it becomes very difficult to see even in bright light, and almost impossible in dark places. The blackout debuff is inflicted by Ragged Casters, unlike the Darkness debuff, equipping a Blindfold, Ankh Charm, or Ankh Shield will not make you immune to this debuff.