I only ever got to play one game some number of years back, and it was under the savage pands rules, but I absolutely loved it.
The magic system is all flavored as mad science, so you picked your spells from the generic savage worlds book and then flavored it however you felt fit your character.
My stun spell was a little hand-held contraption I had built called a 'gastrointestinal defortification projector' It went 'BWOMPH' and anyone within 20 feet shat themselves or threw up.
I pooped myself the first time I used it in combat...