Devilution
Smash Journeyman
If you honestly can't get down techreading with the forward b. It's pretty simple. Do it a couple times and watch for a pattern in the way he rolls. After you do 2 or 3 techreads with his pattern try going the other way, if that works he's probably going to do a getup attack, in that case Shield, Jump, forward B. when he finally realizes that he can just stay down...D-tilt. And on occasions I've done an U-Tilt and it landed.