Looks like Common read between the lines of "Stay Schemin" like the rest of us and responded to this.
Go ahead, press play, and skip to the 3:30 mark.
Track and "cover" found at nahright.com.
My guess is Common is just getting warmed-up and threw this out there to see if Drake will respond to him directly. This could get more interesting but might not. Why? Because of this... "diss me and you’ll never hear a reply for it" - Drake.