Is this the reason the oracle cant just keep healing its players against its foes. The aether amounts will be too much and will drain the mirror universe.
They had come to believe that Aether was unlimited. The Aether was, but the amount available at any given time was not. A Grade 6 Aether Core was enough to locally drain the Aether of a Fourth Ordeal World with an Aether density over a thousand times less.