Animate Dead

Enchant creature card in a graveyard
When Animate Dead enters the battlefield, if it's on the battlefield, it loses "enchant creature card in a graveyard" and gains "enchant creature put onto the battlefield with Animate Dead." Return enchanted creature card to the battlefield under your control and attach Animate Dead to it. When Animate Dead leaves the battlefield, that creature's controller sacrifices it.
Enchanted creature gets -1/-0.

Charcoal Diamond

Charcoal Diamond enters the battlefield tapped.
{T}: Add {B}.

Gravedigger

When Gravedigger enters the battlefield, you may return target creature card from your graveyard to your hand.

Death Pit Offering

When Death Pit Offering enters the battlefield, sacrifice all creatures you control.
Creatures you control get +2/+2.

Relearn

Return target instant or sorcery card from your graveyard to your hand.

Sol'kanar the Swamp King

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)
Whenever a player casts a black spell, you gain 1 life.

Clone

You may have Clone enter the battlefield as a copy of any creature on the battlefield.

Mortivore

Mortivore's power and toughness are each equal to the number of creature cards in all graveyards.
{B}: Regenerate Mortivore.

Ur-Golem's Eye

Memory Lapse

Counter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.

Annex

Enchant land (Target a land as you cast this. This card enters the battlefield attached to that land.)
You control enchanted land.

Control Magic

Enchant creature
You control enchanted creature.

Sisay's Ring

Zombify

Return target creature card from your graveyard to the battlefield.

Fire Diamond

Fire Diamond enters the battlefield tapped.
{T}: Add {R}.

Merfolk Looter

Rukh Egg

When Rukh Egg dies, create a 4/4 red Bird creature token with flying at the beginning of the next end step.

Sky Diamond

Sky Diamond enters the battlefield tapped.
{T}: Add {U}.

Terror

Destroy target nonartifact, nonblack creature. It can't be regenerated.

Death Pits of Rath

Whenever a creature is dealt damage, destroy it. It can't be regenerated.

Prosperity

Nekrataal

First strike
When Nekrataal enters the battlefield, destroy target nonartifact, nonblack creature. That creature can't be regenerated.

Ashen Powder

Put target creature card from an opponent's graveyard onto the battlefield under your control.

Insight

Whenever an opponent casts a green spell, you draw a card.

Hypnotic Specter

Flying
Whenever Hypnotic Specter deals damage to an opponent, that player discards a card at random.

Polymorph

Destroy target creature. It can't be regenerated. Its controller reveals cards from the top of their library until they reveal a creature card. The player puts that card onto the battlefield, then shuffles all other cards revealed this way into their library.

Phyrexian Arena

At the beginning of your upkeep, you draw a card and you lose 1 life.

Fellwar Stone

{T}: Add one mana of any color that a land an opponent controls could produce.

Tidings

Reanimate

Put target creature card from a graveyard onto the battlefield under your control. You lose life equal to its mana value.