Thought I'd give you a glimpse of some stuff I'm planning to post on here soon to get your revved up. All of them are mostly gonna be for B&T, but of course they can easily be converted to whatever
1. Corrupting magic. Absolute power corrupts absolutely, and what's more powerful than being able to stop time? Influenced by things like DCC and Warhammer, the corruption rules will be pretty simple and will result in wizards second guessing if they REALLY wanna cast that Power Word: Kill if it means gaining a third new eye
2. Cybernetics, in a way. Inspired by Rippers and such, these cybernetics will involve ripping monster parts out of creatures and slapping them on your body via a skilled butche- I mean surgeon. Can range from simple replacements to direct upgrades.
3. Advanced tech. For when that magic sword is not enough, how about a magic blaster? This is intended for more S&S games where the current world is built upon the ruins of a much older and much more powerful one. Think Expedition to the Barrier Peaks or Metamorphosis Alpha.