As many reps as possible in 12 mins of:
1 Weighted Muscle-up, 20/14 lbs
5 Med Ball Cleans, 20/14 lbs
2 Weighted Muscle-ups, 20/14 lbs
10 Med Ball Cleans, 20/14 lbs
3 Weighted Muscle-ups, 20/14 lbs
15 Med Ball Cleans, 20/14 lbs
…
Continue adding 1 Weighted Muscle-up rep and 5 Med Ball Clean reps each round until time expires.

Courtesy of CrossFit.com