Zane's health bar was glowing red. It had been a long while since an opponent had forced him into such a desperate state. Well, that was not entirely accurate. Dealing with the Lake Monster of Houhai was actually easier than he thought it was.
However, Zane had made an error of judgement, and attempted an ability he lacked experience with. In doing so, he had inflicted a great deal of damage to himself. He was down to his last 100 HP. And with the threats of the nearby awakened lurking in the shadows. That was a dangerous amount of health to be at.
Of course Zane need not worry. He, after all, had what was arguably the most powerful healing skill in his arsenal, even if it was one that he could only use every thirty minutes. And because of this, he did not hesitate to cast it.