Corrin & Azura Infernal Bound Hero Battle
The branching paths of the map separates the Zelgius squad, which makes the fight more difficult. The key is Earth and Fire Zelgius to fend off the Sword Dragon while losing his health to less than 50% and Water Zelgius (leader) will fight Corrin on the right side of the map to tank the Dragon Fang hit while Wind Zelgius has the Drive Atk 2 seal to add 3 Atk within 2 spaces and Ward Armor to increase +4 Def/Res for max protection for the leader. Escape Route 3 allows Earth Zelgius to transport to the right side of the map and Wings of Mercy 3 for Fire Zelgius to finish off the Blue Mage. Hone Armor is required to boost +6 Atk/Spd for Fire Zelgius to finish off the Blue Mage and Azura. Wind Zelgius with Drive Atk 2 seal does the job.
Units with IVs: +Atk -Res Water Zelgius (leader), +Spd -Def Earth Zelgius, +Res -Spd Wind Zelgius, +Atk -HP Fire Zelgius
Game: Fire Emblem Heroes
Platform: Android
Music from Respective Owners: Dark Souls II: Scholar of the First Sin OST: Ancient Dragon by Motoi Sakuraba