Leylines

Description

A network of "invisible wires" that transfer magical energy, sometimes called "aether" or "mana", throughout the many planes. There are spots in this web where the leylines intersect called "leyline nodes", and these are the places where magical phenomena are more likely to occur. Since the entire thing is one big network, any magical interference with the leylines in one place can have effects on other, connected nodes, and since the leyline network of each universe is just a smaller web within a single node on the Celestial Web, that means big enough magical interference can affect more than just one universe, as well.