Great Apocalypse

In the Old World , it was discovered by a group of heroes that the gods had been creating this cycle of apocalypses where they pitted the angels against the demons.
The angels and demons teamed up with dragons and giants to face the gods united, but were betrayed by Rozgud , who thought the gods would give him the power of a god.
Rozgud was petrified when he swalled Troizenga and he sacrificed himself so both would turn to stone.
The world was still destroyed.
Unbeknownst to the gods, the heroes and villains had also teamed up in a grand world-wide ritual, which put many of them into stasis to wait for the rebuilding of the world.
The Gromican Gods were depowered for their failure, and cast as mortals down into the new world. They were able to hide the dragons and giants in human forms as their last act of defiance.