Cool and nice idea for a game! I really like it! :D
The idea of forming your own spell is really awesome! I always love magic-themed game!
Maybe the thing you can improve is the overall visual, I want to feel magical and powerful whenever I wield my power. SFX also would be nice to add for satisfying effect and feel to it.
Really nice system you have here! I hope you guys can develop this much further in the future! :D