Relentless Dead [Shadows over Innistrad] Fifth Edition If you sacrifice an Island

If you sacrifice an Island this way

"All the wizardry in the world has to pass through one small and easily sealed door

know its possibilities

Set: Kaladesh Prerelease Promos Type: Enchantment Rarity: Mythic Cost: {3}{U}{U} Whenever you cast an instant or sorcery spell

A force as voracious as time itself

Relentless Dead [Shadows over Innistrad] Fifth Edition If you sacrifice an IslandSet: 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.