These Duel Disk belong to the Dark Crop. Duelist. The Black and Grey Duel Disk are the standard Duel Disk for the Dark Crop. Soldier. The Black and Red Duel belongs to Zander. The Black and Blue Duel Disk belongs to Kazerian. The Black and Yellow Duel Disk belongs to Riza.
Copyright of Dark Crop., Zander, Kazerian, and Riza belongs to the A5L.
Copyright of Yu-Gi-Oh! And Duel Disk belongs to Shonen Jump and Kazuki Takahashi.