Lex's body had been brimming with so much energy after breaking through and consuming extreme amounts of energy that he would either have to release it or take time to digest it.
Since he was in the middle of a battle and could end things quickly by using such amounts of energy, he obviously opted to do so.
And what better way was there to use large amounts of energy than through the Hell Blaze Flame?
He also used the Fire Elemental Energy Transformation that he had spent a lot of time training while training the use of the Hell Blaze Flame and the Fire Manipulation Eye.
They were currently his most powerful, wide-scale and explosive abilities, but also the abilities that used the most energy and were the most difficult to control.
But in the current situation, without any innocents in the surroundings, he had no reason to hold back, and the massacre began.
