Horus The Black Flame Dragon LV4 [SOD-EN006] Ultimate Rare

As long as this card remains face-up on your side of the field, control of this card cannot switch. 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 LV6" from your hand or Deck.