I use the move Gravity, which blocks the Godmodder's flight and makes it so he is no longer immune to Ground-type moves! I then repeat the Earthquake/Fissure attack.

...Or do I? The Godmodder is too busy to realize that, amidst the sea of Pikachus, the person repeating the attack was a copy of me! I send a legion of Ice Pokemon to create a Sheer Cold powerful enough to freeze the Godmodder permanently in a tomb of ice.