Great Conduit

The Great Conduit is the elvish name for the flow of aether throughout Kaladesh, both seen and unseen, and the subtle way it suffuses and influences all life.

The movement of aether through the world is visible and obvious where it courses in glowing rivers across the sky, sweeps in leylines across sculpted plains, or pours through great urban pipelines. But the elves of Kaladesh are uniquely in tune with the Great Conduit, and they believe that the only way to truly grasp it is to be a part of it, simultaneously shaping it and being shaped in return.