Diane

Diane is the Serpent's Sin of Envy of the Seven Deadly Sins. She is a member of the Giant Clan; her Sacred Treasure is the War Hammer Gideon, which she uses in conjunction with her inherent power, Creation.

Biography
Bucky was part of the Beorn family which has passed down its sword for generations— this sword is famous, said to be never rust nor break. He was a master swordsman, able to take down multiple soldiers at once.

After winning a sword fight competition he was temporarily made Ayden's personal bodyguard.

When Ayden ran off and was almost captured by an enemy soldier, Bucky found and rescued her, despite her actually not needing his help. They were then found the next morning by Micheal III and his men, and Bucky was stripped of his role as Ayden's bodyguard.

He was then moved to the front lines of the war, where he was told by his fellow soldiers that people who are sent to the front lines are not expected to live.

He was against war and didn't think of Ayden as a war tool.

Powers and Abilities
Immense Strength: Since she's a giant, Diane is able to perform staggering feats of strength, able to clash with the likes of Meliodas in terms of strength and even break through barriers capable of withstanding meteors with a single punch. She can swing a war hammer with a weight of 998 kg (2200 Pounds).

Enhanced Speed: Using her strength, Diane is actually incredibly fast and agile, however, due to her giant size this speed is reduced to nil, but when shrunken to human size her speed increases and is able to dodge rapid arrows shot by a foe of similar ability such as Gowther.

Immense Endurance: Due to being a giant, Diane is able to withstand several mortal blows, such as being pierced through the shoulder and thigh and still move fast enough to save citizens from collapsing buildings, and still retain consciousness even after losing blood and taking a further beating.

Enhanced Durability: Being a giant, few attacks are powerful enough to actually cause grievous harm to Diane, and she can shrug off all but the most powerful attacks from Holy Knights.

Abilities

 * Creation: This ability, which is exclusive to members of the Giant Clan who have a deep connection with nature, enables Diane to manipulate the earth.

Equipment

 * Gideon: Diane's sacred treasure; Gideon, is a war hammer designed for the Giants' Clan. It is made of a material that is stronger than steel and weighs approximately 2200 pounds; it is implied that it may have been forged out of Vibranium. It is able to draw out the full capability of her ability, Creation.