On the other side of the arena, Nidhogg and the dark butterfly were staring at each other.
The dark butterfly obviously knew Nidhogg since he was summoned with the Dragon King as the witness. As such, her task was important. She had to do everything in order to stop this dragon.
That was the reason the dark butterfly chose to remain passive. She just needed to keep the dragon here.
Nidhogg, on the other hand, decided to go all out from the beginning. Even if he couldn't help anyone else after the fight, he could still watch Nathan and ensure the victory of this battle.
Several purple fireballs appeared and circled around his body.
The dark butterfly raised her hands as they began to glow. Her butterfly wings produced pollen.
To avoid them from spreading, Nidhogg sent forth his fireballs.
The dark butterfly wanted to stop it by using the darkness on her hands, but Nidhogg sent the rest of the fireballs toward her.