Virus Control Deck

A Virus Control Deck is not usually seen outside Japan, for the pure reason that, although all the key cards needed have been released in English, two of the three, "Crush Card Virus" and "Eradicator Epidemic Virus", are exceptionally hard to obtain in the TCG, "Crush Card Virus" being one of the Shonen Jump Championship Series Prize Cards and a super-short print in the Gold Series (Although it has been released in Duelist Pack: Kaiba) and "Eradicator Epidemic Virus" being a Secret Rare in the TCG release of "Force of the Breaker", although the latter is somewhat easier to get now, as it is one of the two promo cards for The Duelist Genesis: Special Edition. Furthermore, as Crush Card is currently Forbidden, this deck has lost quite a bit of power, and may only be seen in Traditional Format.

A Virus Control Deck focuses around these 3 Trap Cards:
 * "Crush Card Virus"
 * "Deck Devastation Virus"
 * "Eradicator Epidemic Virus"

"Crush Card Virus" needs a DARK monster with 1000 ATK or less; "Deck Devastation Virus" needs a DARK monster with 2000 ATK or more and "Eradicator Epidemic Virus" needs monsters with 2500 ATK or more. Suitable cards include:

DARK 1000 ATK or below

 * Dark Scorpion - Meanae the Thorn
 * Destiny Hero - Defender
 * Destiny Hero - Fear Monger
 * Destiny Hero - Malicious
 * Giant Germ
 * Gravekeeper's Guard
 * Gravekeeper's Vassal
 * Mask of Darkness
 * Apprentice Magician
 * Old Vindictive Magician
 * Plague Wolf
 * Sangan
 * Spirit Reaper
 * Soul-Absorbing Bone Tower
 * Peten the Dark Clown
 * Destiny Hero - Disk Commander
 * D.D. Crow
 * Necro Gardna
 * Night Assailant
 * Nightmare Horse
 * 8-Claws Scorpion
 * Pharaoh's Servant
 * Swarm of Scarabs
 * Ritual Raven
 * Winged Minion
 * A Cat of Ill Omen
 * Plaguespreader Zombie

Dark 2000 ATK+

 * Dark Necrofear
 * Caius the Shadow Monarch
 * Dark Ruler Ha Des
 * Phantom Beast Rock-Lizard
 * Axe Dragonute
 * Chaos Sorcerer
 * Destiny Hero - Dasher
 * Giant Orc
 * Goldd, Wu-Lord of Dark World
 * Gravekeeper's Chief/Gravekeeper's Assailant/Gravekeeper's Spear Soldier with Necrovalley
 * Helpoemer
 * Infernal Dragon
 * Mist Archfiend
 * Plague Wolf
 * Ryu Kokki
 * Sillva, Warlord of Dark World
 * Swift Gaia the Fierce Knight
 * The Fiend Megacyber
 * Vampire Lord
 * Zombyra the Dark
 * Dark Magician Girl
 * Dark Elf

Dark 2500 ATK+

 * Dark Master - Zorc
 * Masked Beast Des Gardius
 * The Masked Beast
 * Vampire's Curse
 * Dark Magician
 * Dark Magician of Chaos
 * Fusilier Dragon, the Dual-Mode Beast
 * Gorz the Emissary of Darkness
 * Summoned Skull
 * White-Horned Dragon
 * Cyberdark Horn/Cyberdark Edge/Cyberdark Keel quipped with Hunter Dragon
 * Destiny Hero - Dogma
 * Light and Darkness Dragon
 * Giant Kozaky

Monsters

 * Dark Armed Dragon
 * The Dark Creator
 * Gorz the Emissary of Darkness
 * Infernal Dragon
 * Mist Archfiend
 * Giant Orc
 * Axe Dragonute
 * Dark Crusader
 * Giant Germ
 * Sangan
 * Spirit Reaper
 * Mask of Darkness

Spell

 * Recurring Nightmare
 * Mystic Plasma Zone

Trap

 * Crush Card Virus (Traditional format)
 * Deck Devastation Virus
 * Eradicator Epidemic Virus
 * Karma Cut

Other
Cards that lower/raise ATK will also make it able to be used, if the ATK requirements are not met. For example, "Vorse Raider" has 1900 ATK points. Equipped with "Black Pendant" it can be used with "Deck Devastation Virus", and if it is targeted by "Shrink" it can be used with "Crush Card Virus". The use of "Mystic Plasma Zone" enables a variety of monsters to be used with "Eradicator Epidemic Virus". Similarly, "Mucus Yolk", "Plague Wolf", and "Prometheus, King of the Shadows" can raise their ATK with their own effects, thus allowing them to fulfill the requirement for almost any of the three Viruses. "Winged Minion", in addition to being a possible tribute for "Crush Card Virus", can be tributed to add 700 ATK/DEF points to any Fiend-type monster. To protect your Virus cards, "Dark Bribe", "Seven Tools of the Bandit", "Skill Drain", "Divine Wrath" and "Double Snare" are all good cards to have ready.