Menace
Drop — Lurking Glitch enters with two +1/+1 counters on it if you didn't cast any creature spells during your last turn.

Whenever Lurking Vyrkolakas attacks, exile target card from a graveyard. If a nonland card was exiled this way, put a +1/+1 counter on this creature. If a land card was exiled this way, this creature gains lifelink until end of turn.

Draw two cards. If you don't control an artifact creature, you lose 3 life.

Destroy target creature or planeswalker if it has mana value 3 or less or if you control a legendary creature.

Exile the top X cards of target opponent's library. You may play those cards for as long as they remain exiled, and you may pay {VP}{VP}{B} rather than pay the mana costs of those spells.

Each opponent separates the creatures they control into two piles. For each opponent, you choose one of their piles. Each opponent sacrifices the creatures in their chosen pile.

Deathtouch
Drop — When Malicious Mech enters, each player sacrifices a creature. If you didn't cast any creature spells during your last turn, instead each opponent sacrifices a creature.

Flying
When Malicious Skycleaver enters, pay any amount of life. It deals that much damage to each other creature.
Cybersoul {7}{B}{B}

You lose life equal to the number of cards you've drawn this turn, then draw a card. You may repeat this process any number of times.

When Master of the Dark Arts enters, you may exile an instant or sorcery card from your graveyard. If you do, each opponent sacrifices a creature.
Pay 2 life: Master of the Dark Arts gains flying and deathtouch until end of turn.

When Merciless Headsman enters, create a 2/2 colorless Minion creature token with decayed.
{1}{B}, Sacrifice another creature: Draw a card.

{1}{B}, Pay 2 life: Mob Hangman dares 4.
Whenever Mob Hangman attacks, if it's a Rebel, each opponent sacrifices a creature or planeswalker unless they discard a card.

Drop — When Morasha Moshlord enters, if you didn't cast any creature spells during your last turn, all creatures get +2/-2 and gain menace until end of turn.

Target opponent reveals their hand. You choose a nonland card from it with mana value 4 or less. If you do, exile that card. Otherwise, draw a card.

When Night Squad enters, teach target creature menace. If you put a +1/+1 counter on it this way, it can't be blocked this turn.

Enchant creature
Enchanted creature gets +2/+1.
{2}{B}, Discard a card: Enchanted creature gains indestructible until end of turn. Tap it.

All creatures get -2/-2 until end of turn. Until end of turn, whenever one of those creatures die, create a tapped Treasure token.

You may cast this spell as though it had flash as long as your devotion to black is three or greater.
Scry 2, then draw two cards. You lose 2 life.

Reach, lifelink

Whenever Nyxborn Retriever attacks, if defending player has eight or more cards in their graveyard, Nyxborn Retriever gets +2/+1 and gains menace until end of turn.

Destroy target creature if it has fewer colors than the number of colors of mana spent to cast this spell.

Menace
When Ogre Gourmand enters, create a Food token.

During your turn, you may play cards from your graveyard but not from anywhere else.
Whenever you cast an instant or sorcery spell, exile that card instead of putting it into your graveyard as it resolves.
If another permanent you control would be put into your graveyard, exile it instead.

Flash
When Omen of Slaughter enters, each opponent sacrifices a creature or planeswalker.
{2}{B}, Sacrifice Omen of Slaughter: Scry 2.

Your maximum hand size is zero.
Pay 1 life: Draw a card. Activate only as a sorcery.