Wall of Fog (Arcana) [Air] [Water]
Level: Druid 1, Mage 1, Weather 1, Air 1
Mana: 1. Long duration. Base Success: 90%.
  Conjures a curtain of fog useful for, among other things, blocking spellcasters and archers' lines of sight. Characters with true sight or Nature Sense can see through fog clearly, and anyone can see creatures within one square of the fog on either side.