Polytheistic gods band together to fight Lucifer. The Antichrist, and others, such as Babylon, Apollyon, etcetera. 

[b]Villains[/b]:
Antichrist
Satan
The False Prophet
Babylon
Jezebel
Apollyon
Death
Lilith
Persia
Babylon
Cain
Nimrod
The Beast

[b]Suggestions for PC's:[/b]
Shenist deities
The original idea for this had Hindu gods fighting. Don't know if anyone would be offended, but this is the internet.
Grecian deities