Klay is a classic 3 and D type guy, that's all he can do. He is a terrible passer(shoots everytime he gets the ball) and a terrible rebounder.
Klay is actually a pretty good passer not sure where that came from. He's not necessarily a facilitator so his assists numbers may never be that impressive but he's shown the ability to make very good passes at times, particularly off the curl in the pocket pass area.