Area 
Creates an area of dense fog. Even one yard of fog blocks vision. Flaming weapons and missiles lose their extra power in fog. A Fireball loses 1 point of damage per yard of fog it must traverse (e.g., a 3d Fireball that crosses 5 yards of fog inflicts 3d-5 damage), while victims of an Explosive Fireball may count each yard of fog as two yards of distance from the blast. However, no amount of fog will extinguish a fire.

Duration: 1 minute. 
Base cost: 2 to cast. Half that to maintain. 
Prerequisite: Shape Water.

Item 
Staff, wand, or jewelry.  
Energy cost to create: 300.