syntax: cast 'incendiary cloud' This spell invokes a voluminous cloud of flammable gases from the Para- Elemental Plane of Smoke. The cloud will drift of its own accord and exposure to sources of flame will cause it to ignite and explode (a chain reaction causing all adjoining areas full of the gas to explode as well), harming anyone within reach of the cloud. To learn this spell an Invoker must have first mastered Fireshield (Elemental Fire) and Buffet (Elemental Air).