Relentless Dead [Shadows over Innistrad] SM132 while it has an Xyz

while it has an Xyz Material attached that was originally Dragon-Type

Set: HeartGold & SoulSilver: Black Star Promos Type: Psychic Rarity: Black Star Promo

Set: Return of the Duelist Card type: Xyz/Effect Monster Rarity: Secret Rare Attack: 2600 Defense: 3000 2 Level 6 monsters When this card is Xyz Summoned: You can target 1 "Number" monster in your Graveyard

"There is no calamity greater than lavish desires

Set: Magic Ruler Card type: Normal Spell Rarity: Rare Draw 2 cards

Relentless Dead [Shadows over Innistrad] SM132 while it has an XyzSet: Shadows over Innistrad Type: Creature Zombie Rarity: Mythic Cost: {B}{B} Menace (This creature can't be blocked except by two or more creatures.) When Relentless Dead dies, you may pay {B}. If you do, return it to its owner's hand. When Relentless Dead dies, you may pay {X}. If you do, return another target Zombie creature card with mana value X from your graveyard to the battlefield.