I haven't played too many games like this before so I was quickly overwhelmed. Then I got the hang of it, figured out the upgrades and had a great time with it. Then I was overwhelmed again, but much later. I might not have tried all combinations but it felt like I was experimenting enough and some elements, like steam or ice (idk if that's supposed to be their name) seemed useless.
Edit: I found that purchasing a spell that requires a secondary element, it consumes all of it, not only the necessary amount (eg. buying the first meteor wile having 11 magma will consume 10 earths and all 11 magma) Is this intentional?