Relentless Dead (Retro Frame) [Secret Lair Drop Series]

Set: Secret Lair Drop Series Type: Creature — Zombie Rarity: Mythic Cost: {B}{B} Menace (This creature can't be blocked except by two or more creatures.)When this creature dies, you may pay {B}. If you do, return it to its owner's hand.When this creature dies, you may pay {X}. If you do, return another target Zombie creature card with mana value X from your graveyard to the battlefield.