Each God card can do a number of effects automatically and each are the same with each card.
1) The God cards cannot be effected by Magic cards for more then 1 turn.
2) The God cards are uneffected by trap cards period...
3) Pay 1000 Life Points to discard 1 monster on the feild. This power can be used against another god card and can only be used on the second turn it is summoned.(Obelisk has a effect simular to this but is different.)

In 3000 BC: Slifer The Sky Dragon or Osiris the Devil Demond was one of the most feared beasts of all. Slifer/Osiris is the Egyptian God of Good and Evil. Slifers power enabels it to be good. But threw the power of Slifers second effect it can unleash a evil power unseen by anyone else. This cards power is rummored to be the only good card that can reach the hightest attack power. Slifers true meaning is that it is truthful of heart and soul. Slifer has many special abilities, but none more terrifying than it's second mouth or it's Demontic Jaw. Whenever another monster is put in front of it out of the players main phase, Slifer will automatically use it's second mouth attacking the creature with a 2000 attack hit. Slifer's power isn't in the number of creatures you have, unlike Rah' and Obelisk, but by the amount of cards you have in your hand. Because of this dangerous power the Pharoh decided to seal these creatures into stone tablets that were sealed away. Later the Priest Seto later integrated them into the lithograph.

After Pegasus created the God cards, he decided to get rid of them, but two of the 3 were stolen. Slifer was among them. The Rare Hunters delivered their new cards to their master, Marik Ishtar. Marik then gave Slifer to his mind slave, Strings the Quiet One to duel with Yugi Muto. Strings summoned Slifer, and from then on, Yugi never had a chance. Until he realized Slifer's biggest weakness. Then by using Marik's own Revival Jam against him, Yugi played the ultimate combo: Revival Jam, Jam Defender, Infinite Cards, Slifer The Sky Dragon, and Brain Control. This caused Slifer to attack every time Revival Jam was revived on Yugi's side of the field, making Marik draw 3 cards. But then Revival jam would revive itself, re-beginning the cycle, making Marik draw so many cards that he could not draw any more. Win by default. Yugi then got Slifer as his card by the Ante Rule of Battle City. Yugi has used Slifer in many duels since then, but not until the card was stolen and given to Dartz.

In 3000 BC: Obelisk The Tormentor was one of the 3 most feared beasts of all time. Obelisk is the Egyptian God of Light and Darkness. By it's power, it can be dark... powering up to a state that good may not reach, by absorbing the powers of its allies... and also good, by being truthful of heart and soul... Obelisk has many special abilities, but none more terrifying than it's Direct Attack. When Obelisk is in play, he may take the souls of two of his allies and add them to his own. Obelisk will then destroy all opposing monsters and attack the opponent directly for 4000 giga-volts. But luckily, Yami, the current Pharaoh has controlled Obelisk. But then when the thief Bakura attacked, he decided that the Gods were too dangerous, and sealed their souls within the stone tablets. (Priest Seto later integrated them into the lithograph)

After Pegasus created the God cards, he decided to get rid of them, but two of the 3 were stolen. Obelisk was the only one not stolen. Ishizu could it and kept it under her eye for the time being, until she invited Seto Kaiba, CEO of Kaiba Corporation to Domino Museum, where she was holding an exhibit. Ishizu told Kaiba about the Rare Hunters, and told him that he needed a card that could help. So she gave him Obelisk. Kaiba did not intend to give Obelisk back to her, but as Ishizu thought, the future was in her control. Kaiba has used Obelisk in many duels since then, dueling in the finals. But then he lost to Yugi, and lost Obelisk also. Kaiba lost his Lord of Destruction. (as he calls Obelisk) But it did not really matter, because Yugi only had Obelisk for one duel. The card was stolen and given to Dartz... but that's another story...

Obelisks Card Information. Attack: 4000 / Defense: 4000

Ra's information is just like Ra's, but it is different in a few ways. Ra' is the only god that relies on other monsters threw all of it's effects. Ra's attack and defense are ????. Ra' can be tribute summoned or Special summoned, but can only be controled if the card holder chants heretic to revive him from his sealed cacoon ball.

"Great beast of the sky, please hear my cry, Transform thyself from orb of light and bring me victory in this fight. Envelope the desert with your glow and cast your rage upon my foe. Unlock your powers deep within so that together we may win. Appear in this Shadow Game as I call your name... The Winged Dragon of Ra'!"

When Ra' is summoned, it will emit a strange aura, and the aura will enable strange Ancient Egyptian Priesthood text to show up on the surface of the card. This is one of the things that pegasis sincluded into the card after a strange nightmare showed him the cards strange powers. There are a total of 4 special effects, but 3 are very special to Ra'. These effects can only be activated when the verse is chanted out. Ra's attack and defense are equal to the attack and defense or all 3 monsters tributed to summon Ra'. If their is no tribute then their shall be a attack of 0 unless you use Ra's effect.(Ra' can be summoned threw 1,2,3, or 4 tributes!)