Haggish vs. Orah.

Thank you for your answer. I have another question regarding the hero's development in this situation: did I develop the hero correctly, or did I do something wrong? As a reminder, it's difficult to guess which skills will be effective (Dark Magic is almost always a good choice), and I didn't choose Castle because of the logistics – this map is very inconvenient without logistics. And how should one generally approach playing a mage on large and very large maps, considering that time also plays to his advantage? He gathers more powerful artifacts for his units and collects as many useful spells as possible (if we're talking about large but resource-poor maps, where even spells are scarce). Building a game strategy based on finding artifacts is also not very smart, as you can't always find what you need. We always play on "Hero" difficulty, and the development speed often depends on the units defending mines and important resources. I'm asking for help from experienced players, as I'm planning a rematch and don't want to repeat old mistakes.