Sun God Unification (Rare)

If you control a monster whose original name is The Winged Dragon of Ra, you can activate this card the turn it was Set. During the Main Phase: You can pay LP so that you only have 100 left; 1 Special Summoned The Winged Dragon of Ra you control gains ATK/DEF equal to the amount of LP paid (even if this card leaves the field). Once per turn: You can Tribute 1 The Winged Dragon of Ra; gain LP equal to its ATK on the field. You cannot activate both of this card's effects in the same Chain.