Horus the Black Flame Dragon LV6 (DR3-EN007) - Dark Revelation Volume 3 Unlimited

While this card is on the field, it is unaffected by the effects of Spell Cards. During the End Phase of a turn that this card destroyed a monster by battle, by sending this card to the Graveyard, Special Summon 1 "Horus the Black Flame Dragon LV8" from your hand or Deck.