Summon Swarm (Weavecraft)
Level: Druid 2, Mage 2, Spider 2, Bard 2, Ranger 2, Blackguard 2
Mana: 3. Long duration. Base Success: 75%.
  Conjures a cloud of stinging, biting insects that inflict 1d2 points of damage to everyone within every turn, along with inflicting a -2 general circumstance penalty.