Ranger – “Defense” [Campaign 5, Mission 3]

This is practically cheating... Exploiting poorly designed aspects of the game... And even without that, it's not the most challenging mission, especially after the previous one. You just need to level up Phaedon well in the two previous missions and not skimp on the garrison of your capital, and everything will be fine. A well-leveled Phaedon can effectively defeat the Necropolis even with a small army, and the garrison will be reliably protected by what we leave there.
P.S. I played as a Knight.