Name: Justin Arc

Villain Name: Kamen Rider Dark Zi-O

Backstory: Justin Arc is the alternate evil brother of Jake Arc. He was disowned by their father when he discovered that he was bullying his cousin Jaune Arc and dumped by his ex-girlfriend Sarah Nikos, who said right at his face that she cheated on him with Jake, much for his anger. He vowed revenge on everyone in Remnant, especially Ozpin and Salem. He was found by Schwartz, who offered him to lead the new Time Jackers. He accepted the offer and also gained the power to summon each villain from the "Pick Your Card in Musutafu" Universe. He also plans to help both Kaiser Virgolial and Eternal Dormammy to conquer the world and destroy anyone standing in their way. He is now the leader of the Neo Time Jackers.

Forms:

G4 Armor

Ryuga Armor

Orga Armor

Glaive Armor

Kabuki Armor

Dark Kabuto Armor

Nega Den-O Armor

Dark Kiva Armor

Dark Decade Armor

Eternal Armor

Poseidon Armor

Sorcerer Armor

Bujin Gaim Armor

Gold Drive Armor

Dark Ghost Armor

Cronus Armor

Evol Armor

Dark Zi-O Grand King

Special Ability: Villainous Summoning Powers (Dark Zi-O can summon Villainous Characters from "Pick Your Card in Musutafu" universe.)