Reverse flow

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

Effects
When cast, the spell allowed a wu jen to change the direction of the current of a body of water. It changed the direction of flow of a river or stream, the direction of ocean currents and can even be used to make a waterfall flow upwards. It was commonly used by ship-based wu jen, who used it to help their vessel to travel against a prevailing current. The spell also worked pumps and drains. Normal flow, the reverse of reverse flow, was used to return the natural or regular flow to water. This spell was unable to alter the currents found in the phlogiston.

Components
The spell required verbal and somatic components.