>>96617229
>How do you prefer your magic
Gamable content the players can easily understand and I can easily adjudicate that still leaves room for the unknown and unexpected.
>how did you design
Took Wonder and Wickedness, rough vancian spells per day, added a push-your-luck roll under for casting over that number. Works well. The catastrophes are a bit much if you're not ready to have campaign altering shit sometimes.
I use the madlibs spell generation from Freebooters on the Frontier and Maze Rats to generate lists of themed spells for different magic opponents, keeps the spells from getting repetitive.
I've been sitting on the Book of Gaub for a colonial weird campaign for a while and wanting to build something a bit more ritual based around it but its a ways off.