My Deck (zoom in);
Sonic Jammer
Black Luster Ritual (x2)
Shield and Sword
Heavy Mech Support Platform
Pot of Green
Paralysing Potion
Blues Eyes White Dragon (x2)
Wicked-Breaking Flam-Baou
Red Eyes Black Dragon
Slot Machine
Winged Dragon Guardian of the Fortress #1
Giant Soilder of Stone
Gazelle the King of Mythical Beasts
Kuriboh
Nobleman-Eater Bug
Lighting Blade
The Light - Hex Sealed Fusion
Man-Eater Bug
Dragon Capture Jar
Polymerization
Card Destruction
Slifer the Sky Dragon
Vampire Lord
Giga Gagagigo
Fusion Gate
Spellbinding Circle
Gearfried the Iron Knight
Watapon
Card of Sanctity
Invader of Darkness
Rain of Mercy
The Winged Dragon of Ra
Time Wizard
Rocket Warrior
Black Luster Soilder
Baby Dragon
Elemental Hero Clayman
Obilisk the Tormentor
Swords of Revealing Light
Gaia the Fierce Knight
Celtic Guardian
Elemental Hero Sparkman
Thousand Dragon
Infinite Cards
Dark Magician of Chaos
Dimensional Prison
Dark Magician Girl
Dark Magician
Curse of Dragon
Brain Control
Tribute to the Doomed
Axe of Dispair
Dark Hole
Monster Reborn
I had the cheater's deck:
That Ra God Card
Black Hole
Black Hole
Like 20 filler cards
Then one at for every dinosaur card that was destroyed (in my case, 10) it gained 1K attack and 500 Defense.
I was unbeatable.