At the beginning of each player's upkeep, that player discards a card at random.

At the beginning of your upkeep, each player discards a card. Each opponent who discarded a card that shares a card type with the card you discarded loses 3 life. (Players reveal the discarded cards simultaneously.)

At the beginning of your upkeep, each player discards a card.

+1: Each player discards a card. −2: Target player sacrifices a creature. −6: Separate all permanents target player controls into two piles. That player sacrifices all permanents in the pile of their choice.

When Mindslicer dies, each player discards their hand.

At the beginning of each player's upkeep, that player discards a card.

Necrogoyf's power is equal to the number of creature cards in all graveyards. At the beginning of each player's upkeep, that player discards a card. Madness {1}{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.)

Whenever a player casts a spell, that player discards a card.

At the beginning of each end step, if an opponent lost 2 or more life this turn, you may put a quest counter on Bloodchief Ascension. (Damage causes loss of life.) Whenever a card is put into an opponent's graveyard from anywhere, if Bloodchief Ascension has three or more quest counters on it, you may have that player lose 2 life. If you do, you gain 2 life.

Whenever an opponent discards a card, that player loses 2 life.

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

Whenever an opponent discards a card, you may put a quest counter on Quest for the Nihil Stone. At the beginning of each opponent's upkeep, if that player has no cards in hand and Quest for the Nihil Stone has two or more quest counters on it, you may have that player lose 5 life.

Flying Whenever a creature an opponent controls dies, you may gain 3 life. Whenever an opponent discards a card, you may gain 3 life.

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.

At the beginning of each opponent's upkeep, if that player has one or fewer cards in hand, they lose 3 life.

As The Rack enters the battlefield, choose an opponent. At the beginning of the chosen player's upkeep, The Rack deals X damage to that player, where X is 3 minus the number of cards in their hand.

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.

You may look at the top card of your library any time. You may play lands and cast spells from the top of your library. If you cast a spell this way, pay life equal to its mana value rather than pay its mana cost. {T}, Sacrifice ten nonland permanents: Each opponent loses 10 life.

Skip your draw step. Whenever you discard a card, exile that card from your graveyard. Pay 1 life: Exile the top card of your library face down. Put that card into your hand at the beginning of your next end step.

{2}, {T}: Add {B} for each Swamp you control.

{T}: Add {C}. {3}, {T}: Add {B} for each basic Swamp you control.

{T}: Add {C}. {2}, {T}: Each player draws a card, then discards a card.

{T}: Add {C}. {2}, {T}: Choose a color. Add an amount of mana of that color equal to your devotion to that color. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents you control.)

You have no maximum hand size. {T}: Add {C}.

{T}: Add one mana of any color in your commander's color identity.

Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.) Whenever you tap a Swamp for mana, add an additional {B}.

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

+1: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle. −3: Target creature gets +X/+X or -X/-X until end of turn, where X is the number of Swamps you control. −6: You get an emblem with "Swamps you control have '{T}: Add {B}{B}{B}{B}.'"

Nyx Lotus enters the battlefield tapped. {T}: Choose a color. Add an amount of mana of that color equal to your devotion to that color. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents you control.)

{T}: Add {C}{C}.

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

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

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

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Flying At the beginning of your end step, each opponent discards a card. {1}{B}, Sacrifice an artifact: Target creature gets -2/-2 until end of turn.

Flying, menace When Junji, the Midnight Sky dies, choose one — • Each opponent discards two cards and loses 2 life. • Put target non-Dragon creature card from a graveyard onto the battlefield under your control. You lose 2 life.

Flying When Liliana's Specter enters the battlefield, each opponent discards a card.

Myojin of Night's Reach enters the battlefield with a divinity counter on it if you cast it from your hand. Myojin of Night's Reach has indestructible as long as it has a divinity counter on it. Remove a divinity counter from Myojin of Night's Reach: Each opponent discards their hand.

Whenever an opponent casts a spell, that player loses 5 life unless they discard a card.

Flying Whenever Scythe Specter deals combat damage to a player, each opponent discards a card. Each player who discarded a card with the highest mana value among cards discarded this way loses life equal to that mana value.

Kicker {B}{B} (You may pay an additional {B}{B} as you cast this spell.) Protection from white Whenever an opponent discards a card, put a +1/+1 counter on Tourach, Dread Cantor. When Tourach enters the battlefield, if it was kicked, target opponent discards two cards at random.

Each opponent discards two cards.

Vicious Rumors deals 1 damage to each opponent. Each opponent discards a card, then mills a card. You gain 1 life.

Destroy all creatures. They can't be regenerated.

Each player loses X life, discards X cards, sacrifices X creatures, then sacrifices X lands.

If you control a Swamp, you may pay 4 life rather than pay this spell's mana cost. Destroy target nonblack creature. It can't be regenerated.

Repeat the following process X times. Each opponent loses 3 life unless that player sacrifices a nonland permanent or discards a card.

At the beginning of your upkeep, sacrifice Koskun Falls unless you tap an untapped creature you control. Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.

Whenever a creature deals damage to you, destroy it.

At the beginning of each player's upkeep, return to its owner's hand each creature that player controls with power greater than the number of cards in their hand.

Flying Whenever Archon of Cruelty enters the battlefield or attacks, target opponent sacrifices a creature or planeswalker, discards a card, and loses 3 life. You draw a card and gain 3 life.

{T}: Target opponent discards two cards. Activate only during your turn, before attackers are declared.

Target player discards two cards. That player may copy this spell and may choose a new target for that copy.

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 discards two cards. Then exile that player's graveyard.

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.

Whenever an opponent discards a card, that player loses 2 life. Raid — At the beginning of your end step, if you attacked this turn, target opponent discards a card.

Target player discards a card. Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

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.

Flying Whenever Abyssal Specter deals damage to a player, that player discards a card.

Players have no maximum hand size. At the beginning of each player's draw step, that player draws an additional card, then discards a card.

Flying Whenever you cycle or discard another card, put a -1/-1 counter on each creature your opponents control. Cycling {2} ({2}, Discard this card: Draw a card.)

At the beginning of each player's upkeep, if that player has no cards in hand, you draw a card and you lose 1 life. Madness {1}{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.)

Multikicker {B} (You may pay an additional {B} any number of times as you cast this spell.) When Bloodhusk Ritualist enters the battlefield, target opponent discards a card for each time it was kicked.

Add {B}{B}{B}. Threshold — Add {B}{B}{B}{B}{B} instead if seven or more cards are in your graveyard.

Council's dilemma — Starting with you, each player votes for death or taxes. Each opponent sacrifices a creature for each death vote and discards a card for each taxes vote.

No more than two creatures can attack you each combat.

Each player discards all the cards in their hand, then draws that many cards minus one.

Add {B}{B}{B}.

Shadow (This creature can block or be blocked by only creatures with shadow.) If a card would be put into an opponent's graveyard from anywhere, instead exile it with a void counter on it. {T}, Sacrifice Dauthi Voidwalker: Choose an exiled card an opponent owns with a void counter on it. You may play it this turn without paying its mana cost.

If you control a commander, you may cast this spell without paying its mana cost. Exile target creature.

Each player discards three cards.

({B/P} can be paid with either {B} or 2 life.) Target creature gets -5/-5 until end of turn.

Target player reveals their hand. You choose an artifact or creature card from it. That player discards that card.

Whenever you cycle or discard a card, you may pay {1}. If you do, each opponent loses 2 life and you gain 2 life.

Destroy target creature or enchantment an opponent controls. You lose life equal to that permanent's mana value.

Flying When Fell Specter enters the battlefield, target opponent discards a card. Whenever an opponent discards a card, that player loses 2 life.

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.)

Whenever an opponent discards a card, you may draw a card.

Menace When Grief enters the battlefield, target opponent reveals their hand. You choose a nonland card from it. That player discards that card. Evoke—Exile a black card from your hand.

Flying Guul Draz Specter gets +3/+3 as long as an opponent has no cards in hand. Whenever Guul Draz Specter deals combat damage to a player, that player discards a card.

Exile Ill-Gotten Gains. Each player discards their hand, then returns up to three cards from their graveyard to their hand.

Deathtouch Whenever Liliana's Reaver deals combat damage to a player, that player discards a card and you create a tapped 2/2 black Zombie creature token.

+1: Each player discards a card. Each opponent who can't loses 3 life. −3: Target creature gets -X/-X until end of turn, where X is the number of cards in your graveyard. −7: You get an emblem with "At the beginning of combat on your turn, put target creature card from a graveyard onto the battlefield under your control. It gains haste."

When Miasmic Mummy enters the battlefield, each player discards a card.

Target player discards X cards at random.

Destroy all creatures target opponent controls. Draw a card for each creature destroyed this way.

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

When Rotting Rats enters the battlefield, each player discards a card. Unearth {1}{B} ({1}{B}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Each opponent sacrifices a creature or planeswalker with the highest mana value among creatures and planeswalkers they control.

Shadow (This creature can block or be blocked by only creatures with shadow.) Whenever Stronghold Rats deals combat damage to a player, each player discards a card.

Equipped creature gets +2/+2 and has protection from black and from green. Whenever equipped creature deals combat damage to a player, that player discards a card and you untap all lands you control. Equip {2}

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.) Each opponent discards two cards.