One thing I also really like about magic is how building your mana base determines what kinds of cards you can put in your deck and more complex mana bases often have a downside of being inconsistent or slow.

I like lorcanas ink system as well for how it gives you important in game decisions to make, but it doesn't allow flexibility of deck building. You are locked to 1 or 2 colors per game rules. There is a world where there isn't a resource, but casting spells requires other costs.