When you Tribute Summon The Winged Dragon of Ra , its original ATK DEF become the combined original ATK DEF of the monsters Tributed for its Summon. Once per turn, during your Main Phase, you can activate 1 of these Skills:
• Reveal 1 The Winged Dragon of Ra monster in your hand, place it on the bottom of the Deck, then draw 1 card.
• Once per Duel, you can discard 1 card, then add 1 The Winged Dragon of Ra monster from your Deck to your hand.