Vampiric Aristocracy (SGX3-ENS03) - Speed Duel GX: Duelists of Shadows 1st Edition

Once per Duel, during your Main Phase, you can change the name of 1 Zombie "Vampire" monster you control to "Vampire Lord" while it is face-up on the field. Each "Vampire Lord" you control gains the following effect.
• If this card inflicts battle damage to your opponent: You can target 1 card in your opponent's GY; Set it to your field.