Fog

See also: Fog Cloud

Fog is a cloud that blinds and obscures creatures within, and blocks sight, blocking NPC sight cones and preventing attacks and spells which require sight.

Description

Heavily Obscures and Blinds creatures within.

Properties

Type: Cloud

Condition: Blinded

 Blinded

Duration: Whilst on surface

• The affected creature has  Disadvantage on  Attack Rolls.
• The affected creature's range of attacks and spells reduced to 3 m (10 ft).
• Attack rolls against affected creatures have  Advantage.

Creation

This area can be created by the following:

Items:

• Cloak of Cunning Brume
• Hammergrim Mist Amulet

Spells and actions:

• Fog Cloud
• Wild Magic: Fog

Notes

• There is a known bug regarding the IgnoreSurfaceCover internal boost which manifests with Fog. Specifically, if a surface has the property CanSeeThrough = false but CanShootThrough = true (like  Fog Cloud), any active IgnoreSurfaceCover boost allows a creature to see through it. Conversely, if CanShootThrough = false (like  Darkness), the creature must have the specific IgnoreSurfaceCover(SurfaceDarknessCloud) boost to see through it. The result is that features which grant sight through Magical Darkness (e.g.,  Devil's Sight) implicitly grant sight through Fog, but Fog-specific protections do not work against Darkness.
  

The Sight mechanics page explains this bug in further detail.