“When the owner of the four-leaf grimoire is filled with despair, the five-leaf clover grimoire will be born.” Patry is filled with despair after learning he had been manipulated by the devil all this time and turns into a dark elf. He then starts attacking Yuno and Asta, fueled by nothing but hatred and malice. Somehow, becoming a dark elf had made Patry even stronger, which gives Yuno and Asta an even harder time fighting him. Then Captain Nozel appears before them. Nozel happens to have the best magical attribute to fight against light magic, mercury magic.
It looks like Nozel headed toward 
the other huge magic that I sensed,
يبدو أنّ نوزيل اتجه نحو 
،السحر الضخم الآخر الذي شعرت به
Nozel ist auf dem Weg
zu der anderen großen magischen Kraft.
Nozel fue hacia el otro punto
de gran poder mágico.
Nozel ha ido hacia el otro punto
de gran poder mágico.
Comme Nozel semblait avoir suivi
l’autre énorme source de mana,
Nozel sembrava essersi diretto verso
l'altra enorme fonte di mana che avevo percepito,
Acho que o Nozel foi na direção da
outra presença mágica que senti,
Нозель ведь отправился
ко второму мощному сгустку маны.