I've seen this backstory several times throughout and found that the word 'most' should be 'must'
<Backstory>All who wear the colors of this army, from commander to common foot-soldier, can trace their lineage back to the great kingdoms of the pre-cataclysmic era - to Coriopolis, Zad-Zabril, and even fabled Antheros. The blood of the channelers of old runs in their veins; they know and are unafraid of using this power to aid them in combat, both as shield and sword, in defense and attack. The commander who would engage this army in battle most possess a similar familiarity with the enchanter's art.</Backstory>