You can Special Summon this card (from your hand) by Tributing 1 "Airknight Parshath". If this card attacks a Defense Position monster, inflict piercing battle damage. If this card inflicts battle damage to your opponent: Draw 1 card. While "The Sanctuary in the Sky" is on the field and your LP is higher than your opponent's, this card gains ATK/DEF equal to the difference in LP.