W/ Prep! Lucifer & Michael Vs The Great Evil Beast

Can The Presence's children defeat GEB with 7 days prep?

Lucifer can tank an entire multiverse to the face. I think he and Michael win.

Im not sure why they would need prep if they are all knowing? Well supposedly?

GEB stomps.

GEB = God. All of God, not just God's Will and Power. Team wouldn't even be able to beat Classic Synnar let alone GEB.

The way GEB was portrayed in the comic, it's possible that Lucifer can manipulate him.

The GEB didn't know its purpose, didn't even know what evil is, it sought advice form various characters, like swamp thing, Etrigan, and others. It's possible that Lucifer could exploit that, but i don't know if he has the means to actually take it down.