Enchant creature
Enchanted creature gets +1/+1 and can't block.
Wander {1}{B}

This spell costs {1} less to cast for each card in exile you don't own.
Trample
Ward—Exile a nonland, nontoken permanent you control.

Target creature gets +1/+1 and gains deathtouch until end of turn. Scry 1.

Enchant creature
Enchanted creature gets -X/-X, where X is your devotion to black.

Each player sacrifices a creature.
As long as a creature card or creature token was put into your graveyard from anywhere this turn, Rank and Defile has flashback {2}{B}.

Flying
Whenever one or more creatures you control deal combat damage to a player, that player mills two cards.

Menace
When Reaper of the Deep enters, mill two cards. You may repeat this process until there are seven or more cards in your graveyard.
Surface {5}{B}{B}

Whenever Reborn Apostle attacks, each player loses 1 life.

Ward—Discard a card.
Whenever Reborn Fisher attacks, choose a nonland card name, then defending player reveals their hand and discards a card with that name if able.

Whenever Reborn Scuttler attacks, up to one target creature has base toughness 1 until end of turn.

Return target artifact or creature card from your graveyard to the battlefield.
Flashback—{3}{B}, Sacrifice a creature.

Flying
Equipped creature gets +2/+0.
Equip {2}
Spellcharge 2

Flying
Surface {2}{B}{B}. This spell costs {2}{B}{B} less if you control a creature named Relentless Bats.
A deck can have any number of cards named Relentless Bats.

Relentless Busker can't block.
{VP}{VP}{VP}: Return Relentless Busker from your graveyard to the battlefield.

When Remnant of Zakros enters, choose one —
• Each player sacrifices a creature.
• Each player sacrifices an enchantment.

Reach
Replicrawler gets +1/+1 for each other artifact creature you control.
If you would create a token, you may pay {B}. If you do, create a token that's a copy of Replicrawler instead.

Flying
Drop — When Revenant Benefactor enters, if you didn't cast any creature spells during your last turn, return target creature card from your graveyard to the battlefield.

When Rib Collector enters, if it wandered, return target creature card from your graveyard to your hand.
Wander—{1}{B}, Sacrifice another creature.

Return any number of creature cards with total mana value less than or equal to twice your devotion to black from your graveyard to the battlefield.

Approval — This spell costs {X} less to cast, where X is the number of colors among permanents you control.
Exile target creature.

Target creature you control gains deathtouch until end of turn. When that creature dies this turn, create a 2/2 black Zombie creature token.

Whenever Rooftop Slink deals combat damage to a player, you may have each player discard a card.
Cybersoul {3}{B}

Scry 2, then draw two cards. You lose 2 life.

{VP}{VP}, Sacrifice another creature: Draw a card.

Whenever you attack, defending player loses 2 life and you gain 2 life.