Gilthunder

Gilthunder (ギルサンダー) is a Holy Knight with dominion over magic that allows him to generate and manipulate lightning. He is the son of the deceased Great Holy Knight, Zaratras.

Appearance
Gilthunder is a relatively tall man with slightly curly short salmon-colored hair. He has thin eyebrows and a pair of blue eyes.

Armor
He is seen wearing dark-colored full body knight armor without a helmet and wields a single hand sword. The upper body armor is carved with several crosses and the symbol of the Holy Knights. He also has a leather waist belt fastened on top of his armor.

Personality
Gilthunder is a cold and cruel individual, devastation a town by stopping its source of income just because he was angry at them. When he learned that a child pulled out his sword, he threw a spear at the town just to check whether it wasn't an accident, even though the town could have been destroyed. However, despite that, he is honorable as he gave Meliodas a final request when he thought that he was dying. He has a desire to kill the Seven Deadly Sins for apparently killing his father and to prove by killing them all that he has surpassed his father.

Introduction Arc
A day before Meliodas, Hawk and Elizabeth came to Bernia, Gilthunder had come to Bernia and had drunk the Bernia Ale. Even though it was the best Bernia had ever made, the Holy Knight insulted it and called it "only slightly better than a horse's urine". Angered, Mead put a bug in his next drink, which angered Gilthunder and caused him to seal the underground water source of the river in Bernia with a sword imbued with magic. That prevented the villagers from making the ale, which is the sole economic income for the whole village.

Gilthunder was in Fort Solgales, when he heard that a child had pulled his sword. He, diciding to confirm whether this was an accident or not himself, borrowed a spear from one of the guards and threw it directly at Bernia. Meliodas stopped the spear and threw it back, which resulted in the fort's destruction, and Gilthunder realizing that the Seven Deadly Sins were still alive.

Forest of White Dreams Arc
Gilthunder, pointing his sword at Meliodas' neck and saying that he wants to avenge his father, and also wants to prove he has surpassed him, declares that he is stronger than any of the Deadly Sins, and says that he will unbind him and Diane to fight them. Before he could do so, however, both easily break his spell themselves, with Meliodas instructing Diane not to interfere in their battle. Gilthunder then attacks first using a powerful lighting bolt. The Sin of Wrath easily repels the spell back at Gilthunder, but the latter dodges the attack and gets behind the former, slashing him from behind and causing him to fall to the ground. Gilthunder question Meliodas for last words, and Meliodas, seemingly in his last moments, Meliodas asks for the whereabouts of the other five members of the Seven Deadly Sins. Gilthunder answers, telling him that while the whereabouts of three of them remain unknown, it is known that the Fox's Sin of Greed is imprisoned in the Baste Dungeon and the Grizzly's Sin of Sloth has perished in the Capital of the Dead. Hearing that, Meliodas quickly jumps back up, leading Gilthunder to realize that Meliodas let himself be injured in order to obtain information about the other Deadly Sins. Though Meliodas doesn't want to fight anymore, Gilthunder repeatedly attacks him, only for Meliodas to dodge all his attacks. The Holy Knight eventually gets behind Meliodas and points his sword towards his neck. Suddenly, Diane interrupts the battle and lifts him with her hand. He unsuccessfully attempts to escape her grasp by discharging lightning, and Diane throws from the forest to a neighboring village.

Gilthunder is later seen falling down from the sky into a church in a neighboring village. He walks out unscathed from the remnants of the collapsed church, whilst the priests and civilians cry for help.

Abilities/Equipment
Gilthunder, like all Holy Knights, has magic that transcends human knowledge imbued within his body, and is among the strongest in Britannia, with the ability to match entire armies. He is shown to be incredibly strong and agile, easily matching Meliodas in skill and remaining unharmed after being flung from a great height and crashing into a building, destroying it in the process.

Weapon
Gilthunder weilds a long sword. The tip of the blade is curved and wider with the ends pointed. Gilthunder also uses this sword to channel lighting through.

Abilities

 * Lightning Manipulation: He is greatly skilled in lightning magic; able to use it both offensively and defensively. He can use his magic to further increase his physical capabilities, granting him extraordinary strength and agility. His ability has shown to be extremely versatile; this is shown when he utilized a magically imbued sword to seal off an underground water source. In addition to channeling magic into his sword, he can discharge a large amount of lightning from his body. He also has a degree of control over the weather, being able to call forth thunderstorms.

Zaratras
Gilthunder is Zaratras's son. It is unknown what kind of relationship they had but since Gilthunder wants revenge for his death, it can be assumed that they had a good father-son relationship.

Elizabeth
In the past, Gilthunder used to treat Elizabeth as a little sister. However, now, even though the kingdom's priority is to ensure her safety, he says that he doesn't care about her and that she is a "grain of sand in the path to the Holy Knight's rule".

Meliodas
Gilthunder once admired Meliodas and the rest of the Seven Deadly Sins, even wanting to be one of them. After his father was apparently killed by them, he wanted to kill them for revenge and to prove that he has surpassed his father.

Trivia

 * The Japanese name of Gilthunder can be pronounced as Jil Sander who is a minimalist German fashion designer.