Helius

Helius (ヘリアス Heriasu) is an accomplice of the Magic Council of Fiore, and a former member of the Twelve Spriggans of Alakitacia, having his spot filled by God Serena when he departed. He is known in multiple kingdoms for his use of a legendary spell that almost guarantees him to win, depending on the power behind it; with people naming him as the Realm Breaker (リアム ブリアカー Riamu Buriakaa) for it.

Trivia

 * Helius is based upon Archer from the Fate/Stay Night Unlimited Blade Works series.