The moon?

I am a curse, - not sure but I think they said the moon had a curse
A Sorceress' Deluge. - deluge meaning down pour
I am the aftermath of a Holy thing, - Riona living was a miricle
Most likely. - well the moon isn't the most likely but sew me
I am a part of a barrage of things, - the monsters fall from the moon
What am I? - Are you the moon?