Revised Magic

Like many people, I tend to grind on the Rules of Magic for a given setting. What are the bounds on impossibility? Neither total freeform magic nor old-school D&D rote casting really satisfy me.

I also like to make game rules as brief and simple as possible.

Now I've cut the rules for magic, in this game, down to less than a column of text. I believe they're still just as flexible, but better balanced. They make wizards really mechanically distinct from other characters because the wizards now make their most dangerous rolls in down-time, while everyone else is recuperating.