I'm dead.
The power gathered in his mana palace is vast and Robin knows if that thing blasts then his mana palace will be completely ruptured.
That means his death.
Robin felt the threat. The thing is powerful enough to blow his mana palace.
Hee felt that all his power is weak against the abnormal mutation of the Nether Flame and the darkness.
He couldn't think of any way to escape the ordeal. Then the thought of the cure strikes his thought.
The heavenly cure Fairypill, a pill made by the fairies. That can cure all threats and wounds in anyone.
Without a second thought, he tried to pull out the pill from his inventory. Regardless of his wish, even before he took the cure, a new energy flow through his body.
This energy spread from his soul. It isn't something new to him. The energy that spreads through is the abundant power of darkness.