Smoke ladder

Cloud ladder was a common spell used by wu jen in Kara-Tur. The spell was very rare outside Kara-Tur.

Effects
The spell molded smoke into a functional ladder. The wu jen was able to create a ladder of 10 feet (3 meters) or more. This ladder was always rigid, and weighed almost nothing. The ladder was steady and required no support. Only one creature at a time was able to climb the ladder. The spell could also be cast on an existing ladder, which increased the duration of the spell. The summoned ladder lasted until the wu jen ended the spell, or until the spell expired.

Components
In addition to verbal and somatic components, the spell required a material component, the smoke from the fire of burning green wood.