Actually, god or not he was far more powerful than your god could ever be - he is known to have existed. Something that your god could only dream of doing.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'