>>109467489He has magic strength not broad magic powers that is still extremely limiting.
"Strong enough to overpower atlas" means nothing. Is that strong enough to rip a planet apart? If so congrats there are at least 4 other characters that strong only one of which is weak enough to magic for Kratos to have a meaningful advantage.
And as stated Fate, Klarion the which boy, and anyone with a Mother/Father box, just trap him in a pocket dimension and call it a day.