Cyber Dragon/Cyberdark Dragon
Cyber Dragon is the signature card used by Zane Truesdale in the Yu-Gi-Oh! GX anime, and a staple for many tournament decks. Cyber Dragon is a five star monster that can be special summoned if your opponent has a monster on the field but you don't. Many decks would consist of 3 Cyber Dragons, although currently the ruling limits players to one Cyber Dragon per deck. The Cyberdark cards are the counterpart to the Cyber Dragon series, and make their debut in season 2 of GX. They consist of Cyberdark Keel, Cyberdark Edge and Cyberdark Horn, and they can be fused to create Cyberdark Dragon. The Cyberdark strategy revolves around equipping Level 3 or lower Dragon-type monsters and gaining their attack strength, or fusing them to create Cyberdark Dragon who can equip any dragon in the grave, as well as gain attack power proportionate to the number of monsters in your graveyard.
Cyber-Stein or Devil Franken in the OCG , which is named after Frankenstein. At the cost of 5000 Life Points this card allowed a player to Special Summon a Fusion monster.
Cyber-Stein has been the subject of two controversies in the history of the card game. Cyber-Stein was originally printed only for winners of Shonen Jump Championship competitions, with the first card having a bid placed on eBay for over 20,000 US dollars. The buyer did not pay, however and the card was resold for approximately $7,000 USD. The card is now available as a rare in Dark Beginning 2, however this card is banned from most tournaments.