Luna used quite a lot of her magic reserves to heal her entire being, both mental and physical health, using the golden flames. However, she felt a bit of fatigue similar from when she passed out upon finishing the second test. The Unknown Goddess' set of spells used a vast amount of magic and it cost her a quarter of her magic reserves.
"Since this is only a training phase, I did not pass out like last time. However, I have to use the Goddess' Wrath spell wisely unlike my other normal attack spells," she uttered.
She obtained an abnormal amount of magic reserves before awakening, so she never had to worry about the number of spells she had to use and limit herself to low-leveled spells to save magic, however, the godly spells could deplete it without a good strategy.
Even though her magic reserves could replenish faster than normal mages, the amount of magic the godly spells need was not to be taken lightly.