Deltaspace shadowedge

"You either stand with me or against me"

Deltaspace is issei’s best friend, greatest ally,strongest rival and father figure, he appeared on rias’s marrige and helped issei defeat riser since then the two have grown close with issei relying on delta to help him and train him.

he is rias gremory‘s dominator his main job is to beat all her foes and is the strongest among rias‘s evil pieces.

he unlocks his juggernaut drive later on, but it takes a heavy toll on his sanity.

Appearance
his true appearance is unknown to strangers, but is known to issei, Rias and the occult club

personality
Delta talks to no one, besides his friends and family he rarely show any emotion, even If he does it’s usually fake although he is capable of showing genuine emotion, as shown when opened up and told rias about what happened to him.

Sacred Gear
Delta’s Sacred gear(also known as call of destruction)contains the dragonlord(aka the cursed Dragon emperor)Alzrenth who‘s power(at base form)rivals that of the heavenly dragons, at full power Surpasses that of great red,trihexa and ophis, it allows it user to seal a person’s power(including sacred gears) or allows for control over reality and many more powers.