More complicated spell system

[Namel]

I think bit more complicated system than just 1 spell/round would be nice. As it is I find myself limited to very few spells. For example it is almost never worth to cast haste (or anything else) when alternative is to make another phantom of my griffin stack.

Maybe system where spells had some kind of point value and you can cast certain amount worth of points/round?

For example you got 10 points. Phantom costs 10 points, haste 6 points, heal 2 points etc. So I could either cast one phantom on that round or 3-4 smaller spells. You could easily tie lot of skills to this system. Skill giving more points/round, skills giving smaller point cost for certain school of spells etc.

This is just quick idea and probably not the best way to solve it. But I think something instead of rigid one spell/round system would be good so that larger variety of spells would be worth casting.