User blog comment:Crimson and Darkness/Volume 25 discussion blog/@comment-77.136.87.178-20180506124540/@comment-34061653-20180506173128

Strada is Satan class not God class. She has Crom alone for the purpose of fighting Issei while helps with the extra power so she doesn't have to rely solely on Crom. Issei's current team still have the advantage in terms of power.