The 4th annual offline tournament, "Best of the best".

Let's say, the best approach is to take snipers, cavalry, and upgraded vampires. But even that isn't enough, so you can spend the remaining money on bone dragons. After all, 7 bone dragons (with reserves) is also a powerful stack, not worse than 15 cavalry. Moreover, they lower the enemy's morale, and you don't have to worry that your battle calculations will collapse at the most inopportune moment due to the morale of your monsters. If there isn't enough money, I'll take at least 1 bone dragon. And I have enough morale myself – I have an expert leadership skill.