Islands of Mystery, Chapter 2: Dragon Wisdom

The "Recruit" difficulty level implies that the player doesn't possess exceptional strategic skills and doesn't have the time or desire to replay each battle multiple times, but rather wants to enjoy the story and have a good time. I'm saying that "Recruit" should be noticeably different from "Hero." In the first mission (especially in the dungeon), we sometimes see the opposite effect (the number of prisoners joining, for example). Also, where does the phoenix summon come from?