Gates of the Underworld Structure Deck
The “Gates of the Underworld” structure deck brings out the unexpected and devastating power of the Dark World monsters. By discarding cards you gain unbelievable power. Discard “Grapha, Dragon Lord of Dark World” to the graveyard, use his effect to destroy any card on the field. Then return a Dark World monster to your hand to special summon him! This 2700 ATK machine can never be killed for good. Then pop out “Deck Devastation Virus” to destroy all of your opponents monsters with 1500 or less ATK (on field and in hand) – for the next 3 turns! Use its counterpart “Eradicator Epidemic Virus” to destroy all spell and trap cards for the next 3 turns – left him open to abuse.
This deck is available at FreeYugioh.com (costs 25 entries). Its a completely free way for anyone 13 years or older to get Yugioh cards, decks, and gear for free.