Even if Rocka has upgraded to Rocka XL, it still wasn't enough to stop Witch Doctor evil plan. And so, the will of planet Quatros granted Rocka the Universe most purest Quaza, The Quaza of leadership. And Rocka Fused with the Quaza to his core, and became Rockamus Prime XXL.
About this creation
The truth is, I have already finished building him for almost a year ago.