"Hisssss!" Katarina drew in a sharp breath as the air force fake Sai launched broke through her barrier and pieced off a good chunk of her stomach.
Under the auto heal she copied from Sai, the wound healed itself but Katarina's heart was not comforted by this fact.
'My auto heal is different from Sai's that it isn't actually automatic. Using different types of magic at once, I am able to cast many different types and amount of magic making full use of my ruler magic.' Katarina vanished into another dimension to dodge a blow from fake Sai.
Fake Sai didn't make any reaction except wrapping his fist in healing mana and slamming it into the area where the dimension was located and forced Katarina into reality.
'But the downside is that it exhausts my very little mana capacity. If I were a monster like Sai, then this much would have been nothing. Problem is...' Katarina waved her staff and a meteor teleported above Sai's head and slammed him to the floor.