I'm great with textures and ideas, but this mod idea I've come up with is more than I could hope to achieve alone. I'm hoping to do a collaborated project.
I like the medieval aspect of minecraft, and would really like to be able to cast spells in game (without having to wield a specific item, maybe a skyrim-style skill tree gui). I'd like to include a potion belt that allows hotkey potion use for quick healing in the heat of battle, and maybe even a combat mode toggle, which instantly switches your control scheme and hotbar. I have a lot of other ideas for it as well, and a balancing system to make it stay close to vanilla. Anybody with some experience up to the challenge?
If you want to see my mod with textures that I made myself as an example of what I can do as a first try, click here.
This is a great idea, and I can help some with the coding part of it, but I'm not that experienced to code what you have described. We can change one or two minor things (maybe?!). Let me know if you would like to work together!