7 : Flame And | Wind

Erza Scarlet, Natsu Dragneel, Gray Fullbuster, and Lucy Heartfilia must stop the dark wizard Erigor from using the cursed flute, "Lullaby," to commit mass murder at a guild master meeting.

The climax of the confrontation with the Dark Guild Eisenwald. Key Narrative Elements 7 : Flame and Wind

Natsu defeats Erigor using his Fire Dragon’s Roar, overcoming the wind disadvantage through sheer destructive power and determination. Themes Erza Scarlet, Natsu Dragneel, Gray Fullbuster, and Lucy

Erigor attempts to use his "Stormmail" armor to gain a speed advantage over Natsu. 7 : Flame and Wind

Based on your request, this appears to be a title within the Fairy Tail anime/manga universe, specifically episode 7 (" Flame and Wind ") or a chapter in a fanfiction story.