You can only use the 2nd effect of this card’s name once per turn, also you can only use its 3rd effect once per Duel.
(1) This card’s name becomes “Red-Eyes Black Dragon” while face-up on the field or in the GY.
(2) If your opponent Special Summons a monster(s): You can send this card from your hand or field to the GY; Special Summon 1 “Red-Eyes” monster from your hand or Deck, except “Red-Eyes Soul”.
(3) (Quick Effect): You can target 1 “Red-Eyes Black Dragon” in your Monster Zone; inflict damage to your opponent equal to its original ATK.