[whswhs]

I would totally not go for a "wildcard" where I could only cast a specified list of spells, as is implied by your suggestion about "you can cast one spell of the college for each point you have in the college." The whole point of wildcards is that they're wide open. If I learn Fire Magic! I ought to be able to try to cast any fire magic spell. At a penalty, maybe, but if putting three points into Fire Magic! only lets me cast three spells, it's no improvement on just putting one point into each one spell, which is how i would normally do it.