Weakened Galactus vs Hogwarts

Scenario: A very hungry Galactus mistakenly believes that they're globe of life energy in the middle of the Hogwarts.  
 
Hogwarts students, teachers, masters, and Lord Voldemort's army united, and gathers together in Hogwarts, preparing to fend off Galactus.  
 
Setting: Hogwarts 
Preparation time: An hour before Galactus' arrival 
Equipment: All access to Hogwarts' equipment for the Hogwarts' side
Moral: Off (Galactus' ethic is different anyway)   

Other notes:  
Dead characters are still alive,  
Monsters and exotic characters included 
No Galactus' Herald   
Ain't Dr. Strange capable of hurting Galactus to some degree?
No spite intention, of course! I make this as fair as ruled to be.
  
How weak is "weakened" Galactus? - As weak as when every time in the comics when he came down to the Earth     
If it's still unfair, I could bring him closer to starvation......
 

 

 cosmic world eating stomp

Galactus would destroy them without even trying. Starving Galactus destroyed three solar systems.

Galactus would destroy them without even trying. Starving Galactus destroyed three solar systems.

Galactus is such a glutton. Ron and Hermione stomp.

even weakened, galactus will eat that magic planet without any problem.

Wow , what an astounding thread !!
It should go right int the hall of fame next to the "Death Eaters vs The Celestials" thread some HP  fandork posted in 
 lounge.movie.com

lol

I hate fandorks.