Historia Regum Britannia (Fairy Tail: Geoffrey of Monmouth)

Historia Regum Britannia (ヒストリア・レッグム・ブリッタニーア) is the king of Britannica and the first guild master of the Britannica Guild. He's the central character in.

Born and raised in Arabia of Albion, Historia was a slave to the Blaiddyd Dynasty. Having enough of the slavery treatment and hard labour, he rebelled against the kingdom and fought back against the Arabian Knights of Arabia and escaped into the nothern territories of Albion into the kingdom of Camelot where he was able to gain passage onto a ship and arrived in Fiore.

After arriving in Fiore, he soon learnt his capable of performing magic, specifically Satan Soul spell to which he inherited from his late parents and he trained himself to master this specific spell until he was 20 years old. After mastery Satan Soul and gaining friends along the way, he formed the Britannica to which he made to be both a magical guild and a merchant guild and becoming the first guild master of Britannica guild.

Magic & Abilities
Take Over ( Teiku Ōbā): Historia is a powerful user of Taker Over, being the magic passed down to him by his father via Archive. This magic allows him to over the powers and abilities of creatures and entities at will and manipulate them. Specifically, he is the user of Satan Soul (サタンソウル). In the same case of Mirajane, he is also able to take over demons and even Etherious, to which his signature Satan Soul spell, Satan Soul: Raijin a etherous passed down from his father.
 * Satan Soul: Raijin (セイタﾝ・ソール:・ライジイﾝ): The spell passed down from his father and is factly born with it, Historia is capable of transforming in a demon of lightning. As he uses the spell, he glows in a light that covers his entire body of blues scales on his arms, legs and forms a tail. His clothing also changes. wearing the robes down to his wasit and is shirtless.