Note: This is a demonstration, not my actual playthrough.
Since the last chapter was an obligatory RPG fire chapter, why not an obligatory RPG ice chapter? My units are all promoted, and ready to take on the Ice Dragons. Unfortunately, the Ice Dragons have absurdly high Skill, so they have crit rates on most of my characters; however, this wasn't a problem. I also start staff spamming with Merric.
New Characters:
-Beck, Robert, Belf: More benchwarmers.
-Leiden: He has pretty good growths and gets support from Sirius, but comes at a time when your army should have promoted already. Plus, his Defense growth is horrid.