Relentless Dead [Shadows over Innistrad]

Relentless Dead [Shadows over Innistrad]Set: Shadows over Innistrad Type: Creature Zombie 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 converted mana cost X from your graveyard to the battlefield.

Whenever you cast a creature spell of the chosen type

damp air of the dead earth in a steady rhythm

Indestructible

a 'poem of ivory

and a land

"There will come a time when the only prey left will be each other

Set: Unlimited Edition Type: Artifact Uncommon Cost: {4} {1}

Set: Modern Masters 2017 Type: Land Rare Cost: {T}

{1}: Target noncreature artifact becomes an artifact creature with power and toughness each equal to its converted mana cost until end of turn

which can be quite unsettling for their prey

Each creature you tap while casting this spell pays for {1} or one mana of that creature's color

Set: Magic Player Rewards 2004 Type: Artifact Rare Cost: {2} At the beginning of your upkeep