I've read this before. The general idea of (view spoiler)[someone after his power and framing him for crimes, like dumping the body of someone he knows on his doorstep, and a guy he thinks is a friend is trying to take his power from him via sex magic (hide spoiler)] - yeah, I've read that story a while back, like more than a year ago. This is more fleshed out than what I read before. (view spoiler)[I don't recall the elements playing as big a part, like the test, or the new moon shifting, for example. (hide spoiler)] It's driving me bonkers trying to remember if I read a freebie that got published, or something in an anthology, or published under another name, or what.