What are the Yu-Gi-Oh god cards effects?

Answer 1

Obelisk the Tormentor

DIVINE/Divine-Beast/Effect/10

ATK: 4000 DEF:4000

You must Tribute 3 monsters to Normal Summon this card (You cannot Set this card). The Normal Summon of this card cannot be negated. When this card is Normal Summoned, Spells, Traps, and Effect Monster effects cannot be activated. This card cannot be targeted by the effects of Spells, Traps, or Effect Monsters. If this card is Special Summoned, it is sent to the Graveyard during the End Phase. You can Tribute 2 monsters to destroy all monsters your opponent controls. This card cannot declare an attack the turn this effect is activated.

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Slifer the Sky Dragon (from Yu-Gi-Oh! World Championship 2010: Reverse of Arcadia)

DIVINE/Divine-Beast/Effect/10

ATK: ? DEF: ?

You must Tribute 3 monsters to Normal Summon this card (You cannot Set this card). The Normal Summon of this card cannot be negated. When this card is Normal Summoned, Spells, Traps, and Effect Monster effects cannot be activated. This card cannot be targeted by the effects of Spells, Traps, or Effect Monsters. If this card is Special Summoned, it is sent to the Graveyard during the End Phase. The ATK and DEF of this card becomes the number of cards in your Hand x 1000. When your opponent Normal Summons or Flip Summons a monster with 2000 DEF or less, it destroys that monster.

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The Winged Dragon of Ra

DIVINE/Divine-Beast/Effect/10

ATK: ? DEF: ?

This card cannot be Special Summoned. You must Tribute 3 monsters to Normal Summon this card (You cannot Set this card). The Normal Summon of this card cannot be negated. When this card is Normal Summoned, the effect of Spells, Traps, and Effect Monsters other than this card cannot be activated. If this card is Normal Summoned, you can pay Life Points so that you only have 100 left to have this card gain ATK and DEF equal to the amount of Life Points paid. Also, you can pay 1000 Life Points to select and destroy 1 monster on the field.