Now I will tell you about the most rarest cards ever made in Yu-Gi-Oh.
They are called The Egyptian God Cards.
They have unlimited power.
The first one is called Obelisk the Tormentor. With an attack and defense power of 4000. It can also be sacrificed to destroy all your opponent's monsters.
The second is called Slifer the Sky Dragon. Its attack and defense is based on how many cards you have in your hand.If your opponent summons a monster its attack points get reduced by 2000.
The thrid and most powerful is called The Winged Dragon of Ra. Its attack and defense is based on the attack and defense of the three monsters you had to sacrifice to summon Ra.
If you want to summon an Egyptian God you'll have to discard 3 monsters on your side of the field. If you have all 3 Egyptian God Cards you automatically win!
You have to get an Egyptian god from one of the first booster packs invented and you need lots of luck or you can buy the legendary collection. You'll get 3 Egyptian Gods, a Blue Eyes White Dragon, a Red Eyes Black Dragon, and a Dark Magician. You'll also get 6 of the first booster packs invented.