Running out of time, Theodore increases his ferocity. His fist began moving faster and faster the more his body burnt down. he couldn't afford to waste any more time with this demon. The flame burns brighter and brighter, each hit also deals considerable damage to the demon.
Reeva's expression darkens as the first comes right into his gut. He still couldn't fight, he could only use his arm to cover his face but that's just left Theodore free space to punch him in the body.
Moreover, Theodore is a complete monster in his own right, he was able to exert so much mystic force with so little waste. And through sheer grit, he was able to last through the flame that was covering his body.
His combat prowess leaves no room for Reeva to counterattack. He didn't even know what to do. His low combat knowledge plus the fact that Theodore is fast gives him no room to react. And the flame made the guy look more like a demon than Reeva.
Bang!