Crusadia Leonis

“You can Special Summon this card (from your hand) in Defense Position to your zone a Link Monster points to. You can only Special Summon "Crusadia Leonis" once per turn this way. You can target 1 "Crusadia" Link Monster you control; if it attacks a Defense Position monster this turn, inflict piercing battle damage to your opponent. You can only use this effect of "Crusadia Leonis" once per turn.”