"Cyber End Dragon" and three "Cyber Dragons".
"Cyber Dragon" (サイバー・ドラゴン Saibā Doragon) is an archetype of cards that are also part of the "Cyber" archetype. They are a group of Machine-Type monsters, most of which are LIGHT, used by Zane Truesdale, then later by Syrus Truesdale in the Yu-Gi-Oh! GX anime and manga. Cyber Dragon and its upgraded forms, serve as a spiritual successor towards the Blue-Eyes White Dragon cards.
In the OCG, a Deck centered around this archetype was released in December 2013, Structure Deck: Blitzkrieg of the Mechlight Dragons (the TCG counterpart being Cyber Dragon Revolution Structure Deck) which will bring more members, support cards, and the brand new Xyz Monster "Cyber Dragon Nova".
"Chimeratech" monsters are related to, but not part of, the "Cyber Dragon" archetype, being composed of DARK, Machine-Type Fusion Monsters. All "Chimeratechs" require multiple Fusion Material Monsters. In the case of "Chimeratech Overdragon" and "Chimeratech Fortress Dragon", one of the Material Monsters must be a "Cyber Dragon", while "Chimeratech Rampage Dragon" requires two or more "Cyber Dragon" Monsters for its Summon. The ATK and DEF of "Chimeratech Overdragon" and "Chimeratech Fortress Dragon" is a variable multiplied by the number of monsters used in its Fusion Summon, which can be as high as the user wants. The variables are x800 for the former and x1000 for the latter. "Rampage Dragon" is the only one whose ATK value does not change, although it can destroy as many Spell or Trap Cards as the materials used for its Fusion Summon.
The main strategy for these cards is to Summon the stronger "Cyber Dragon" Fusion Monsters. When building a Deck around these cards use strong Machine-Type monster cards to help keep the field clear and to unleash the devastating powers of the "Chimeratech" cards. Union Monsters, like "Heavy Mech Support Platform" and "Armored Cybern", can help with supporting monsters already on the field. The effect of "The Light - Hex-Sealed Fusion" can be used to Special Summon "Cyber Twin Dragon" and "Cyber End Dragon".
A quick way of swarming the field is by Special Summoning "Proto-Cyber Dragon" with "Photon Lead", then activating "Inferno Reckless Summon" and Special Summoning all "Cyber Dragons" from the hand, Deck and Graveyard, resulting in a massive field advantage and the ability to perform Xyz and/or Fusion Summons.
"Honest" is ideal to support the LIGHT monsters. "Jinzo" can negate all Trap Cards or "Cyber Phoenix" to negate Spells and Traps that target Machines on the field providing protection to Special Summon "Cyber Twin Dragon" without worrying about your opponent traps or spells, while providing more Fusion Material for the "Chimeratech" Dragons.
"Limiter Removal" can be used in place of an "Honest", as it affects all Machines, though with the fatal drawback of destroying all your Machines at the end of the turn. "DNA Surgery" is also a good card to include, since it allows you to use your opponent's monsters for "Chimeratech Fortress Dragon" ("DNA Surgery" + "Super Polymerization" for "Chimeratech Overdragon" is another option) as well as clearing your opponent's field for an easy OTK.
There are times when "Chimeratech Overdragon" can be removed from the field as soon as its Summoned by means of "Bottomless Trap Hole", "Solemn Warning", and "Torrential Tribute". When you have LIGHT Attribute Machine-Type Monsters on your field, they can also be used as Summon requirements for "Cyber Eltanin" by just banishing them. Not only will "Cyber Eltanin" have high ATK, but once its Summoned to the field it also clears it of any other monsters besides itself leaving your opponent open to a direct attack. A quick combo is to use the "Gadgets" to bring Machine-Types to your hand so you can fuse them with "Cyber Dragon" to create "Chimeratech Overdragon".
With the new cards that will come in Structure Deck: Blitzkrieg of the Mechlight Dragons, part of the Cyber Dragon's strategy will rely on swarming the Field and even managing the level of the "Cyber Dragons" for a quick Xyz Summon of their new ace card, "Cyber Dragon Nova".
"Transmodify" can be useful as it allows you to tribute a "Cyber Dragon Zwei"/"Cyber Dragon Drei" to Special Summon a "Cyber Dragon" from the Deck and perform the Xyz Summon of "Cyber Dragon Nova" if you have another "Cyber Dragon" out already.
You can combine "Cyber Network" with "Cyber Dragon Nova" to retrieve all "Cyber Dragons" banished by their effects and maintain a huge Field presence.
"Cyber Repair Plant" can be used to give fuel to "Cyber Dragon Nova" as it searches a "Cyber Dragon" for you to banish as cost for its effect, but can also be useful to perform the well-known Special Summon of "Cyber Dragon", if you control no monsters while your opponent does.
Another combo that can give speed to the new version of the Deck is "Foolish Burial" + "Cyber Dragon Core". Send "Cyber Dragon Core" from the Deck to the Graveyard and you will have conditions to quickly Special Summon a "Cyber Dragon" directly from the Deck. Another smart use for this monster, once it is treated as "Cyber Dragon" while on the field or in the Graveyard, is to banish it to boost "Cyber Dragon Nova"'s ATK, so this can be useful if its first effect were used and you don't want to let it exposed on the Field.
If you have "Cyber Dragon Core" on the field, "Machine Duplication" will Special Summon "Cyber Dragons" directly from the deck. This can lead to an immediate "Cyber Dragon Nova". Furthermore, with "Limiter Removal", you can have an 8400 ATK Monster when combined with "Nova"'s effect (by banishing "Core"). Or, instead of summoning Nova, if you have "Power Bond", you can use it to summon "Cyber End Dragon" with 8000 ATK.
Rank 5 Cyber Dragon
This Deck variant focuses more on Rank 5 and control tactics rather than beatdown. For this build ideal cards are the likes of Artifact Moralltach and Artifact Sanctum which are easily splashed in the deck, since most Cyber Dragon Decks are focuses on beatdown, both "Moralltach" and "Sanctum" provide an element of surprise over the opponent since both cards can potentially destroy the opponent's cards as well as providing Rank 5 material and a solid beater. Due to the nature of both cards, the opponent may be reluctant to destroy your Spell/Trap cards giving more freedom to the Cyber Dragon player to summon monsters.
Another useful monster is Chronomaly Golden Jet due to being a LIGHT Machine-Type Monster it can be searched by Cyber Repair Plant. A good combo is to Normal Summon Cyber Dragon Core to search "Repair Plant" then let "Core" be destroyed, then the following turn use "Repair Plant" to search "Golden Jet" and banish "Core" to Special Summon "Cyber Dragon", finally Normal Summon "Golden Jet" and using its effect can access nearly every Rank 5 monster (excluding C (archetype) monsters) including the powerful Constellar Pleiades, although "Cyber Dragon Drei" can also achieve this due to its restrictions it can only do so after a turn. Another option is Star Drawing, as it can allow the player to Draw a card, however it cannot be searched by "Repair Plant" nor can Xyz Summon "Pleiades" or "Cyber Dragon Nova" making it rather impractical.
With the new support from Crossed Souls even Rank 5 Decks can enjoy very powerful offensive, largely due to both Cyber Dragon Infinity being easily summoned through "Nova", and Chimeratech Rampage Dragon being a Level 5 monster thus being also a good target for Instant Fusion although Panzer Dragon is also a viable option due to its Level and destroy effect as well as being LIGHT for "Pleiades". A good play is to Xyz Summon "Nova" through Cyber Dragon and another monster like "Drei" or "Golden Jet", then use the effect of "Nova" to Special Summon "Cyber Dragon" and then use "Instant Fusion" to Special Summon either "Panzer Dragon" or "Rampage Dragon". Between the two "Rampage Dragon's" is usually prefered due to its effect to dump two LIGHT Machine-Type monsters which can range from "Core" to others like Electromagnetic Turtle thus fueling plays, though if summoned by "Instant Fusion" then "Rampage Dragon" cannot attack nor destroy Spell/Trap cards. Despite of this you can Xyz Summon into another Nova by using "Rampage Dragon" and the previously summoned "Cyber Dragon" and use its effect to Special Summon "Cyber Dragon" once more. Lastly Xyz Summon one of the "Novas" into "Cyber Dragon Infinity", then if the opponent has no monster or a single monster in attack position, you can use "Infinity's" effect to attach it as a Xyz Material. Finally the field is open to attack with "Cyber Dragon", "Cyber Dragon Infinity" and "Cyber Dragon Nova" who should attack last to make sure "Cyber Dragon" attacks too and then banish it to boost "Nova's" attack, potentially dealing over 8000 damage thus enabling a OTK, and thanks to "Infinity's" negation effects the opponent is left with small room to stop the ensuing offensive.
Because "Rampage Dragon" is a good source for Xyz Summons due to "Instant Fusion" it is likely to be in the Extra Deck as well as being an overall good provider of fuel. As such it is also a good idea to run cards like "Power Bond" or "Overload Fusion" since "Rampage Dragon" needs 2 or more "Cyber Dragon monsters" unlike the other "Chimeratech" monsters that strictly needed "Cyber Dragon", thus getting the materials is easily done through "Core" via its banishing effect and the "Repair Plant" it can get. If summoned by the usual Fusion Summon method, "Rampage Dragon" can destroy at least 2 Spell or Trap cards, thus destroying possible resistance. Furthermore if summoned through "Power Bond" it can double its ATK and in conjunction with its ability to gain an additional attack per monster sent from your Deck to the Graveyard (max 2). If the opponent controls only a monster or weak monsters or none, then "Rampage Dragon" can at best OTK the opponent on the spot after attacking three times, otherwise if a OTK is not possible its dumping effect can still be put to strategic use for Xyz plays by sending cards like "Core" to eventually fuel Rank 5 plays or "Cyber Dragon" itself combining with the likes of Call of the Haunted.
Overall this variant can be played much more offensively, by making use of different cards to ensure more reliable and safer plays, since both new members of the Deck provide a level of protection to the Deck by destroying or negating potential threats, thus there is no real loss of defense.
Cyber Dragon OTK
The Cyber Dragon OTK is made by using a high ATK monster (mainly monsters such as Cyber End Dragon and Cyber Twin Dragon), and boosting its attack to great potential by using cards to increase their ATK points that they can kill the opponent in one turn. Ensure that Trap Stun is Set and ready to use in case your opponent tries to use Bottomless Trap Hole, Solemn Judgment/Solemn Warning or mass destruction Traps such as Mirror Force to destroy your cards.
Rank 5 Cyber Dragon
Deck with focus on Rank 5 Tactics. It trades the high ATK power of the OTK variant in exchange for control power, having a balance between offense and defense while being capable of summoning powerful monsters with relative ease, for nearly any situation. With the access to the newly gained "Cyber Dragon Infinity" and "Chimeratech Rampage Dragon" this variant can make use of massive swarm and offensive ability.
As most of the Cyber Dragons are Light-type Machine monsters (excluding Chimeratech monsters, as they are DARK instead), the "Ally of Justice" monsters (especially monsters such as Ally of Justice Core Destroyer and Ally of Justice Catastor) will kill them instantly regardless of your Cyber Dragon's ATK. Cards such as Magnetic Mosquito and System Down also hurt them (especially System Down, as it banishes Machines), and are the most common, exploitable, and obvious countermeasures to this deck since System Down can eliminate the presence of all machine type monsters on the field aswell as those in the graveyard (which the Cyber Dragon archetype are heavily reliant on as most monsters within it allow them to share it's name).Karma Cut has also been shown to be a very good counter measure to the deck as it can easily eliminate every monster that shares the name of Cyber Dragon and is more splashable against common deck types such as Zombie and Harpies. Another option is Electric Virus which while uncommon can allow the user to prevent a potential one turn kill from the common extra deck monsters within the deck. Although both "System Down" and "Karma Cut" can be mitigated by the effect of Cyber Network.