There are no offical rulings on the God Cards only because they are not allowed in offical duels.
But for those of us that like to play around with our friends and us them anyways. I have come up with
a set of rules that are easy to follow.
1. God Cards MUST be tribute summoned by sacrificing three monsters.
2. God Cards are destroyed at the end phase of the turn they were special summoned.
3. God Cards can be targeted BY THE OWNER ONLY
4. The following is a list of cards that can resurect the God Cards
Monster Reborn
Pre-Mature Burial
Call of the Haunted
The Shallow Grave
Spear Cretin
Rope of Life
Question
*note* Amonous Actioin Unit cannot be used because
it targets the opponents graveyard, and Gods can only
be resurected by their respective owners
4. God Cards are uneffected by magic, trap, or creature effects that specifically designate a target (ex. Man-Eater Bug, Tribute to The Doomed, Spellinding Circle)
cards that are global (ex. Dark Hole, Raigeki, Mirror Force) DO effect the God Cards
Name: God of Obelisk
Attribute: Divine
Type: Divine/Beast
Description: The decent of this mighty creature shall be heralded by burning
winds and twisted land. And with the coming this horror, those who draw breath
shall know the true meaning of eternal slumber
Effects:
*This effect can only used once per turn. Offer two monster CARDS other than Obelisk on your side of the field as tributes,
destroy all monsters on your opponents field and deal 4000 direct damage to your opponents life points.
* If any other creature other than Obelisk is attacked while Obelisk face-up on the field then the difference in damage is instead dealt to the opponent
Name: God Dragon Oshiris
Attribute: Divine
Type: Divine/Beast
Description: The Heavens twist and thunders roar with the desent of this mighty beast
Effects:
* The Attack and Defense of Osiris is determined by the number of cards in its controllers hand x1000
*Any creature summoned favce-up on the the opponents side of the field the attack and defensre of the card is reduced bt 2000 if the defense or attack reach zero the creature is destroyed
Name: Sun God Dragon Ra
Attribute: Divine
Type: Divine/Beast
Description: The angel sing of this beasts mighty power
Effects:
* Attack of this ccreature is the combined attack of the three sacrificed monsters combined and the same goes for the defense
* The turn this card is SPECIAL summoned it ccannot be destroyed
* Pay 1000 life point to destroy any monter on the field
* Offer any number of monters to add the attack of the monter the Ra's Attack and the sasme to the defense
* Pay any number of life but 1 and add it to the attack of Ra
