I have a town that is focused around a device from a lost civilization, the current civilization an the people of this city know how to use the device to control the weather but they don't know why it was built, or what the history of it is.
So far the people who are in control of it are clerics of a storm god and they use this device mostly for the good of the people, but they do accept bribes and such to change the weather to favor whoever the highest bidder is, as long as it doesn't bring destruction.
My question is who as a faction or person/people would want to take over this device and why, what could they use it for?
The game setting is D&D 5e although it's mixed with aspects of the Numenera game, hence the device.
The device is actually a giant eyeball made of unknown materials and whenever certain substances are placed onto the eye it will create the appropriate weather.
EX: water placed on the eye will bring rain. sand=sand storm, covering the eye=darkness blood=blood rain, poison/acid= acid rain etc.
The weather effect covers only the town and surrounding fields, and it can not be used to target a specific area. It can control temperature and wind as well. If you choose to blow on it with a certain force, or cast lightning spells at it.