"Reality Bind!" Lucas split Sai into two clean halves with a single punch and yelled, gathering the power of the world in his hands, and shaped it into a ring that crushed Sai into nothingness. Or that was his intention.
The power in Sai's body resisted the changes he tried to make to the world and fixed his opponent's body faster than the crushing force could destroy him.
'If I want to kill him, I'm gonna have to do something about that healing magic of his first.' Lucas could feel the growing threat in Sai's hand and decided to change targets.
Reality Bind basically squeezed an opponent into nothingness using the power of the world. Lucas hasn't tried to use it on someone's energy but it should only require a few modifications.
'And if it works, then I'll be able to do something about that energy he is creating.' Lucas finalized it and raised his hands again and charged at the reformed Sai.