you generally shouldn't need more than 5 attacks or 5 spells or even up to 10 unless your character is famous for their encyclopedic knowledge of techniques.

Combat Expert is more than just your ability to land an attack, it is also your ability to get a read on your opponent's fighting style, your ability to play chess/go, your affinity for identifying uncommon weapons, your martial training in the art of batmanning a situation, and your ability to devi...