Quote Originally Posted by MrThinker View Post
On the off chance that this wasnt a typo, Eden turned all aether in its vicinity to the umbral polarity in order to cause the flood.
Astral is the Light Element which is stasis, slowness, and stability. Umbral is the Dark Element which is chaos, change, and creation. As stated in the ShB MSQ in Il Mheg.

Eden as a Guardian Force made of Light by design slows everything to a standstill where it enters stasis. What we are doing with Eden in the raid is using its ability to affect polarities to move everything towards an Umbral charge, speeding it back up.

This is also why periods of Peace in history where everything is stable are called Astral Eras, while periods of chaos and rapid change are called Umbral Eras.

So no, that is not a typo.