Berserker and Saber were circling Ruber and Venetus, before they vanished in a wisp of magic and appeared behind the twins and they all started glowing, pulsing in sync.

"This is bad." Vincent said to Saber and to Nicola who was busy making sure Berserker was ok. Vincent and Saber jumped in. 

Gabby and Ella's eyes were glowing a vibrant green, and they raised their hands, now tipped with razor sharp claws, and they lept as well as their two servants, it was a wave, a blitz of scratched, punches and kicks, as the two sets of twins, jumped, strafed, lunged and leapt around the area, striking. Vincent and Saber and moving before they had a chance to counter.

Berserker was making his way over to help, but he was soon trapped in the circle, as they widened their net in order to include him. It was just a blur or blond, red, blue, green and black as they blitzed around and attacked, they of course were not allowed to actually defeat us. 
"Fuck!"