Flying

Whenever a source an opponent controls deals damage to Archfiend of Spite, that source's controller loses that much life unless they sacrifice that many permanents.

Madness {3}{B}{B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Each opponent discards two cards. If you control a Vampire, each opponent loses 2 life and you gain 2 life.

Whenever Ashling, the Extinguisher deals combat damage to a player, choose target creature that player controls. The player sacrifices that creature.

Target player reveals three cards from their hand and you choose one of them. That player discards that card.

Black creature spells you cast cost {1} less to cast.

Whenever you cast a creature spell, each opponent loses 1 life and you gain 1 life.

When Burglar Rat enters the battlefield, each opponent discards a card.

Changeling (This card is every creature type.)

As long as a creature card with flying is in a graveyard, Cairn Wanderer has flying. The same is true for fear, first strike, double strike, deathtouch, haste, landwalk, lifelink, protection, reach, trample, shroud, and vigilance.

Target opponent chooses a number. You may have that player lose that much life. If you don't, that player sacrifices all but that many permanents.

Equipped creature gets +2/+0 and has shroud. (It can't be the target of spells or abilities.)

Whenever a Rogue creature enters the battlefield, you may attach Cloak and Dagger to it.

Equip {3}

Target player discards a card.

Haunt (When this spell card is put into a graveyard after resolving, exile it haunting target creature.)

When the creature Cry of Contrition haunts dies, target player discards a card.

Target player sacrifices half the permanents they control, rounded down.

Suspend 2--{2}{B}{B} (Rather than cast this card from your hand, you may pay {2}{B}{B} and exile it with two time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost.)

At the beginning of each player's upkeep, if Curse of the Cabal is suspended, that player may sacrifice a permanent. If the player does, put two time counters on Curse of the Cabal.

Add {B}{B}{B}.

Flying

Lieutenant -- As long as you control your commander, Demon of Wailing Agonies gets +2/+2 and has "Whenever Demon of Wailing Agonies deals combat damage to a player, that player sacrifices a creature."

Flash

Whenever a creature you control dies, each opponent sacrifices a creature.

Menace

Whenever Dreamstealer deals combat damage to a player, that player discards that many cards.

Eternalize {4}{B}{B} ({4}{B}{B}, Exile this card from your graveyard: Create a token that's a copy of it, except it's a 4/4 black Zombie Human Wizard with no mana cost. Eternalize only as a sorcery.)

When Elderfang Disciple enters the battlefield, each opponent discards a card.

{T}: Add one mana of any color that a land an opponent controls could produce.

{T}: Add {C}.

{T}: Roll the planar die. Activate only as a sorcery.

Choose one --

• Target player discards a card.

• Target creature gets +2/-1 until end of turn.

• Target creature gains swampwalk until end of turn. (It can't be blocked as long as defending player controls a Swamp.)

Target player discards two cards at random.

Flying

Whenever Hypnotic Specter deals damage to an opponent, that player discards a card at random.

+1: Target player discards a card.

-2: Search your library for a card, then shuffle and put that card on top.

-8: Put all creature cards from all graveyards onto the battlefield under your control.

Each opponent sacrifices a creature. If you control a Liliana planeswalker, each opponent also discards a card.

Whenever an opponent discards a card, Megrim deals 2 damage to that player.

When Merciless Executioner enters the battlefield, each player sacrifices a creature.

Target player reveals a number of cards from their hand equal to the number of Swamps you control. You choose one of them. That player discards that card.

{B}, Sacrifice Necrogen Spellbomb: Target player discards a card.

{1}, Sacrifice Necrogen Spellbomb: Draw a card.

Trample

Whenever a source deals damage to Phyrexian Obliterator, that source's controller sacrifices that many permanents.

Target player discards a card. If a land card is discarded this way, return Psychic Miasma to its owner's hand.

{2}, {T}: Add one mana of any color. Put a brick counter on Pyramid of the Pantheon.

{T}: Add three mana of any one color. Activate only if there are three or more brick counters on Pyramid of the Pantheon.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

At the beginning of your upkeep, return target creature card from your graveyard to the battlefield.

At the beginning of each opponent's upkeep, that player sacrifices a creature.

Flying, lifelink

Whenever The Haunt of Hightower attacks, defending player discards a card.

Whenever a card is put into an opponent's graveyard from anywhere, put a +1/+1 counter on The Haunt of Hightower.

Will of the council -- Starting with you, each player votes for death or torture. If death gets more votes, each opponent sacrifices a creature. If torture gets more votes or the vote is tied, each opponent loses 4 life.

Target player loses 1 life, discards a card, then sacrifices a permanent.

Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)

Each opponent sacrifices a creature. If you have the city's blessing, instead each opponent sacrifices half the creatures they control, rounded up.

Whenever an opponent discards a creature card, create a 2/2 black Zombie creature token.

Whenever an opponent discards a land card, add {B}{B}.

Whenever an opponent discards a noncreature, nonland card, draw a card.