Mask's backflip had cost him. He hadn't thought that his opponent might try and attack during his onslaught. It had been to hide his own attempt to rid himself of the enemy, but he miscalculated.
The beams sheared his opponent's Left leg and severed the left arm as well. The right arm was lightly damaged, as was the right leg. However, Leon's Torch got inside the swing and cleaved the Elf Bullocks left leg off, the hunk of metal flying off, beam still sputtering. 
The flip finished, and he finally unleashed his hidden attack, the top half of the torso being blown away, missing the cockpit by mere meters. He landed with a thud on the opposite side of Leon, panting heavily in anger. 
"These damn Gundam Types!" He yelled to himself, turning the remains of his Mobile suit to face the enemies. He was lucky the Elf Bullock could function, it's beam guns and finger beams only slightly rocked by the collapse.
He would stay fighting. Worse outcome, be could always grab that piece of leg and fly off with the Elf Bullock's transformation. 
He gritted his teeth aiming both hands at the currently preoccupied Elite Zakus. 
"Damn...you...!" He began in anger.