I will make a separate bug & suggestion thread for myself but I wanted to make a thread about this separately because I think it's important. A lot of people are complaining about the lack of variety of spells and I agree. Many of the spells are identical but just the corresponding version of that spellbook. I mean that's understandable and necessary to a degree but spells need to be more varied in effect. Let's say maybe the earth version of a direct damage spell should be superior to the fire version in some respects but another fire summon spell should be superior to the earth version. Make the range of one version different, make the effect different, make the power different, make the cost different, make the spell level different. People then would have to weigh in all these differences when making a sovereign. That's what makes it fun.
This brings me to my second point. Right now, pretty much all the stock sovereigns are the same! All of them have all the spellbooks. Sure they have different traits but nothing that really gives them a "personality". In Master of Magic, you knew Kali was a death wizard because of all her death books. You knew Lo Pan was a sorcery/chaos wizard because of his book selection. In Age of Wonders, you knew Fangir was an earth wizard. That gave them a personality. I don't see any of that in Elemental. As of now, all stock wizards have the equivalent of a MoM wizard who has all the 66 spellbooks. The stock wizards should have specific spellbook selections based on their personality and should specialize in some areas. So for example when I face Magnar I know I should mainly fear his fire spells.
Right now, each spellbook selection is worth 3 points in sovereign creation which is "extremely" cheap. The spellbook selection affects the game deeply for a sovereign. If you have 50 points total, I think each spellbook pick should cost "at least" 5 points maybe 7-8 or even more. If you want to be able to research all spells, you need to give up quite a bit in other areas in my opinion. That would bring a lot more strategy in sovereign making. If everyone has everything, it makes for a boring game.