"Elemental HERO Avian" + "Elemental HERO Burstinatrix" Must be Special Summoned with "Dark Fusion" and cannot be Special Summoned by other ways. If this card attacks a Defense Position monster, inflict piercing Battle Damage to your opponent. When this card destroys a monster by battle and sends it to the GY: Inflict damage to your opponent equal to either the ATK or DEF (whichever is higher) of the destroyed monster in the GY.