Could just make it one frame, dismember it, and then keep moving, 1 frame of relax can't hurt you.
Or just find your bro, play a twinsword, switch to one frame with your bro, then let him DM, after the DM, as 1 frame, just keep going. Relax all makes it as when your tori gets DM'ed, they made it real, like you kick his arm off, he relaxes all, then he tilts to the side and starts dying (By realism).
Overall, Not Supported, it might do exactly what Cigs said.