Horus the Black Flame Dragon LV6 (SOD-EN007) - Soul of the Duelist Unlimited

As long as this card remains face-up on your side of the field, it is unaffected by any Spell Cards. During the End Phase of a turn that this card destroyed a monster as a result of battle, send this card to the Graveyard to Special Summon 1 "Horus the Black Flame Dragon LV8" from your hand or Deck.