Guerschon Yab, Approximately 6'7" 270 pounds, and movement wise he's an absolute freak of nature. Way Quicker than Larry Johnson ever was.
It's actually mind blowing seeing this guy just float right buy smaller players like they are standing still.
Chuck was a good 2" shorter than Yab, and Barkley was more Explosive, but that's the closest thing I can think of with that type of bodyweight, Quickness and Power combination.
I think Yab cab blow by people much better than Marcus Smart. The kids first step is tremendous. He might be a gem.