"World's greatest"

The "world's greatest", as dubbed by EXOS's Mark Verstegen, combines multiple joint movements in one series of moves. 
So many great elements: 
Stepping move - dynamic stability in the sagittal plane of the weightbearing hip with triple flexion of the stepping leg.
Lunge - force absorption on the front leg. 
Lunge progression to trunk rotation - closed chain ankle dorsiflexion and hip flexion, with closed chain hip extension on the trailing leg. Locked lumbar spine for isolated thoracic rotation, weightbearing dynamic stability on the down hand. Chest on thigh stimulates resistance for diaphragmatic breathing. 
Dynamic posterior lower chain stretch to stand up. 

One of the go-to moves before training of any kind to explore which body parts are not happy moving, and to express mobility with stability.