Zombie tokens

Create thirteen tapped 2/2 black Zombie creature tokens.

Flashback {7}{B}{B}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Black creatures get +1/+1.

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.

{1}{B}, {T}, Discard a card: Create a 2/2 black Zombie creature token.

Tap three untapped Zombies you control: You draw a card and you lose 1 life.

Target player creates X 2/2 black Zombie creature tokens, then up to one target creature gets -1/-1 until end of turn for each Zombie that player controls.

Skeletons you control and other Zombies you control get +1/+1 and have deathtouch.

At the beginning of your upkeep, create X 2/2 black Zombie creature tokens, where X is half the number of Zombies you control, rounded down.

{B}, {T}, Sacrifice another creature: Create X 2/2 black Zombie creature tokens, where X is the sacrificed creature's power.

Zombies you control have menace. (They can't be blocked except by two or more creatures.)

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

Whenever a creature you don't control dies, return it to the battlefield under your control with an additional +1/+1 counter on it at the beginning of the next end step. That creature is a black Zombie in addition to its other colors and types.

Deathtouch

Whenever Grave Titan enters the battlefield or attacks, create two 2/2 black Zombie creature tokens.

Kicker {5}{B} (You may pay an additional {5}{B} as you cast this spell.)

Menace

When Josu Vess, Lich Knight enters the battlefield, if it was kicked, create eight 2/2 black Zombie Knight creature tokens with menace.

Zombies you control get +1/+1.

When Liliana's Mastery enters the battlefield, create two 2/2 black Zombie creature tokens.

[+1]: Up to one target creature gets -2/-1 until your next turn.

[−2]: Mill two cards, then you may return a creature card from your graveyard to your hand.

[−7]: You get an emblem with "At the beginning of your end step, create X 2/2 black Zombie creature tokens, where X is two plus the number of Zombies you control."

Other Zombie creatures get +1/+1.

{1}{B}, {T}: Return target Zombie card from your graveyard to your hand.

Whenever you tap a Swamp for mana, add an additional {B}.

{B}: Nirkana Revenant gets +1/+1 until end of turn.

{T}: Each player loses 1 life for each Zombie on the battlefield.

Deathtouch

Exploit (When this creature enters the battlefield, you may sacrifice a creature.)

When Sidisi, Undead Vizier exploits a creature, you may search your library for a card, put it into your hand, then shuffle.

({T}: Add {B}.)

Unbreathing Horde enters the battlefield with a +1/+1 counter on it for each other Zombie you control and each Zombie card in your graveyard.

If Unbreathing Horde would be dealt damage, prevent that damage and remove a +1/+1 counter from it.

Other Zombie creatures have swampwalk. (They can't be blocked as long as defending player controls a Swamp.)

Other Zombies have "{B}: Regenerate this permanent."