Estarossa / Mael

Estarossa of the Ten Commandments was revealed to be Mael, the strongest of the Four Archangels, whose identity was rewritten by Gowther's forbidden spell. As Mael, he wielded the Grace 'Sunshine' (the same power later passed to Escanor), making him the most powerful warrior of the Goddess Clan. His true power at noon was so overwhelming that the entire Demon Clan feared him, and his fall into darkness after absorbing multiple Commandments nearly destroyed both realms.