Zen Vs Lucas

"It's alright, I learned a new spell", she said and a small fireball appeared at the tip of her index finger. There was a small fireball at the tip of her finger, and she pointed it right at her wounds.

There was a slight sizzle and the cut which was supposed to be there was missing. The fire had healed the cut, and she was proceeding to do the same to other wounds that she had suffered in the fight.

"Why didn't you use it in the fight? You could have used it in the fight, right?", he asked with worry. He was sure his sister had her reasons, but he didn't want to just let it be. 

"Because it needs time. The flame has to be tempered to a certain degree for every wound, and it is a very tedious task. One must keep monitoring the temperature, and it always fluctuates." 

Unlike the Light Element which is known for its Healing Prowess, the others do not have such properties."