UFC 85 featured Nate Marquardt with his head-spiking piledriver using near flawless technique. And in UFC 84 we had Dong Hyun Kim dropping Jason Tan on his noggin’. Will this be a new trend in MMA? Never mind that it’s totally an illegal move; but for some reason the refs aren’t calling it. While Kim’s piledriver wasn’t nearly as pretty as Marquardt’s it still got the job done.