Simplify the following text for a Grade 5 native English-speaking person.
Original: As the number of Mamodos decreases , Zatch and his allies encounter a Mamodo called Zofis who takes control of several Mamodos who were sealed in stone from the previous battle to decide the king . After the battle against Zofis , the whole world is put in danger after a giant Mamodo named Faudo is brought to life by a Mamodo named Riou .
Simplified: The last Mamodo standing will be ` King ' of the Mamodos .