In my opinion, the most important thing on this map is obtaining the teleportation magic. The war with the AI after landing on the island of the yellow AI really took me 3 days.
the earlier you attack, the more floors he builds (he concentrates on the main castle), and the later, the more he focuses on the army and developing other castles.
And another interesting point, they all have 3 heroes (once a Barbarian had 4).
