What is the effect of ''The Winged Dragon of Ra''?

The Winged Dragon of Ra

Attribute: DIVINE

Type: Divine-Beast/Effect

Level: 10

ATK: ?

DEF: ?

Original Lore: Spirits sing of a powerful creature that rules over all that is mystic.

Effect Monster Lore: 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, Spells, Traps, and other Effect Monsters' effects cannot be activated. When this card is Normal Summoned, you can pay Life Points until you have 100 left to have this card gain ATK and DEF equal to the amount paid. You can pay 1000 Life Points to destroy 1 monster your opponent controls.

In-Game Lore (excluding Reverse of Arcadia): You must Tribute 3 Monsters you control to Normal Summon this card. The Normal Summon of this card cannot be negated. When this card is Normal Summoned, a Spell, Trap, or Effect Monster Card cannot be activated. This card cannot be targeted by the effects of a Spell, Trap, or Effect Monster. 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 sum of the respective ATK and DEF values of the Tributes. When this card is Special Summoned, you may activate one of the following effects:

• Pay 1000 Life Points to destroy one monster on the field and remove it from the game.

• Pay all but 1 Life Points, and increase ATK and DEF by the amount of Life Points paid.

Possible Anime and Manga Lore: You must Tribute 3 monsters to Normal Summon this card (You cannot Set this card). The ATK and DEF of this card becomes the sum of the combined ATK and DEF of the Tributed monsters. While this card is face-up on the field, it cannot be removed from the field by other cards' effects or have its control switched. This card is unaffected by the effect of Trap cards until the End Phase. In addition, this card is unaffected by the effects of "Obelisk the Tormentor" and "Slifer the Sky Dragon". When this card is Special Summoned, activate one of the following effects:

• Pay all but 1 Life Points and Tribute all other monsters you control. Increase this card's ATK and DEF by the total amount of Life Points paid and the sum of the Tributed monsters' ATK and DEF.

• Pay 1000 Life Points. Any monster battling this card is immediately destroyed without applying Damage Calculation.

Also, this card may attack each of your opponents monsters once each and may attack directly if possible during the turn it is Special Summoned. If this card was Special Summoned in Defense Position, your opponent may not select another monster as an attack target. Send this card to the Graveyard during the End Phase of the turn it was Special Summoned.