Jake defended against the next series of attacks. He managed to reduce the damage by using mana. The whole process increased his control over mana flow and also gave him a proper estimation of how much mana is being consumed.
Jake managed to get an opening due to the Heather's exhaustion. She was using tok much energy to use the flame-balls, but the effect seems to have reduced. It was as if Jake managed to adapt to the intensity of the flames. Heather was surprised and exhausted, which provides Jake with the opening to attack Heather's chest.
The punch was quite heavy and blasted Heather back by 10 steps, Jake took advantage of the situation and attacked Heather. He was using the advanced boxing method, and even tried to find an opening for using suction punch. It was the only skill he hadn't used until now.