This is Belarussian LHD Daniil Karpovich. I don't know a lot about him, but he's 6'4", 209lbs. In some draft lists, particularly those near the start of the season, I've seen his name pop up. In the MHL this year, he put up a pretty jaw-dropping 35 points in 47 games, good for fourth in the league for D, but pretty amazing for an 18 year-old (he's an older prospect with a Dec.6th birthday). The most I can find on him is that he has all the tools, plays a physical brand of hockey, but near the beginning of the season he was said to be not the best thinker. Take a look, looks like he moves well, and has a good shot:
https://www.youtube.com/watch?v=2RoNgo5geY4