Flying

Whenever Abyssal Specter deals damage to a player, that player discards a card.

Minion creatures get +1/+1.

{B}{B}{B}, Exile Balthor the Defiled: Each player returns all black and all red creature cards from their graveyard to the battlefield.

Other Zombie creatures you control get +1/+1.

{2}{B}, {T}: Exile target creature card from a graveyard. Create a 2/2 black Zombie creature token.

Crypt of Agadeem enters the battlefield tapped.

{T}: Add {B}.

{2}, {T}: Add {B} for each black creature card in your graveyard.

Diregraf Ghoul enters the battlefield tapped.

Flying, first strike

Whenever Drana, Liberator of Malakir deals combat damage to a player, put a +1/+1 counter on each attacking creature you control.

Whenever a Swamp enters the battlefield under your control, choose one --

• You draw a card and you lose 1 life.

• Dread Presence deals 2 damage to any target and you gain 2 life.

{B}: Dread Shade gets +1/+1 until end of turn.

Menace (This creature can't be blocked except by two or more creatures.)

{2}{B}, Sacrifice another creature or planeswalker: Put two +1/+1 counters on Dreadmalkin.

Imprint -- When Extraplanar Lens enters the battlefield, you may exile target land you control.

Whenever a land with the same name as the exiled card is tapped for mana, its controller adds one mana of any type that land produced.

Deathtouch

When Mire Triton enters the battlefield, mill two cards and you gain 2 life.

When Priest of Gix enters the battlefield, add {B}{B}{B}.

Whenever an opponent discards a card, that player loses 2 life.

Raid -- At the beginning of your end step, if you attacked this turn, target opponent discards a card.

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.

When Shambling Ghast dies, choose one --

• Brave the Stench -- Target creature an opponent controls gets -1/-1 until end of turn.

• Search the Body -- Create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

Deathtouch

When Tainted Adversary enters the battlefield, you may pay {2}{B} any number of times. When you pay this cost one or more times, put that many +1/+1 counters on Tainted Adversary, then create twice that many 2/2 black Zombie creature tokens with decayed. (A creature with decayed can't block. When it attacks, sacrifice it at end of combat.)

Menace

Whenever an opponent sacrifices a nontoken permanent or discards a permanent card, you may put that card from a graveyard onto the battlefield under your control.

{T}: Target player loses 3 life unless they sacrifice a nonland permanent or discard a card.

{3}{B}: Untap Tergrid's Lantern.

Enchant player

At the beginning of enchanted player's upkeep, that player loses 3 life unless they sacrifice a nonland permanent or discard a card.