Legions

All Sliver creatures have "{2}: This creature gets +1/+1 until end of turn."

Amplify 1 (As this creature enters the battlefield, put a +1/+1 counter on it for each Zombie card you reveal in your hand.) Trample

{1}: Exile target card from a graveyard.

Whenever Vile Deacon attacks, it gets +X/+X until end of turn, where X is the number of Clerics on the battlefield.

Whenever a Sliver deals combat damage to a creature, destroy that creature. It can't be regenerated.

Flying Morph {3}{B} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

{7}{B}: Target creature gets -3/-3 until end of turn.

Morph {3}{B}{B} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When Skinthinner is tur...

Trample Whenever Scion of Darkness deals combat damage to a player, you may put target creature card from that player's graveyard onto the battlef...

When Phage the Untouchable enters the battlefield, if you didn't cast it from your hand, you lose the game. Whenever Phage deals combat damage to ...

Whenever Noxious Ghoul or another Zombie enters the battlefield, all non-Zombie creatures get -1/-1 until end of turn.

Morph {3}{B} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When Infernal Caretaker is...

Flying Whenever Hollow Specter deals combat damage to a player, you may pay {X}. If you do, that player reveals X cards from their hand and you cho...

Flying When Havoc Demon dies, all creatures get -5/-5 until end of turn.

At the beginning of your upkeep, you draw X cards and you lose X life, where X is the number of Zombies you control.

Sacrifice a Goblin: Regenerate Goblin Turncoat.

Amplify 1 (As this creature enters the battlefield, put a +1/+1 counter on it for each Zombie card you reveal in your hand.) At the beginning of yo...

Cycling {B}{B} ({B}{B}, Discard this card: Draw a card.) When you cycle Gempalm Polluter, you may have target player lose life equal to the number ...

Amplify 1 (As this creature enters the battlefield, put a +1/+1 counter on it for each Zombie card you reveal in your hand.) Whenever Embalmed Braw...

{2}{B}, {T}, Sacrifice a Goblin: Destroy target land.

Dripping Dead can't block. Whenever Dripping Dead deals combat damage to a creature, destroy that creature. It can't be regenerated.

Drinker of Sorrow can't block. Whenever Drinker of Sorrow deals combat damage, sacrifice a permanent.

{2}{B}, {T}, Sacrifice a Zombie: Destroy target non-Zombie creature. It can't be regenerated. Activate only as a sorcery.

{T}, Sacrifice three Clerics: Search your graveyard, hand, and/or library for a card named Scion of Darkness and put it onto the battlefield. If yo...