When he was fighting earlier in the deserted region, he discovered that the Mage on Balor's team had a fire affinity. Even though it was relatively weak, it helped him significantly when fighting at night.
Heizen thought for a while and released all the shadow slaves except for the eagle. Since this fight was dangerous, it was better not to hold back and give 100%.
As for hiding his Authority from Luna, as he had thought earlier in the forbidden forest, he realized that he was quite naive.
After reading through tons of books, he realized that summoning shadows wasn't a rare skill, as many dark mages were proficient in it.
Of course, they couldn't raise such powerful shadows after killing them like him, but he no longer needed to hide.
"Swoosh," with the Heizen's command, Balor and his three friends emerged in front of the Luna and Heizen, ready to fight.