Psychosis Crawler's power and toughness are each equal to the number of cards in your hand. Whenever you draw a card, each opponent loses 1 life.

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.

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

Each player discards three cards.

Flying When this creature enters, target opponent discards a card. Whenever an opponent discards a card, that player loses 2 life.

Each player loses half their life, then discards half the cards in their hand, then sacrifices half the creatures they control of their choice. Round up each time.

Each opponent's maximum hand size is reduced by one.

Target opponent reveals their hand. You choose a creature card from it. That player discards that card. Scry 1.

Each opponent's maximum hand size is reduced by two.

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

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

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.

Flying, haste Whenever Rankle deals combat damage to a player, choose any number — • Each player discards a card. • Each player loses 1 life and draws a card. • Each player sacrifices a creature of their choice.

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

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.

At the beginning of each end step, if a player discarded a card this turn, create a 1/1 black Bird creature token with flying and "This token can't block." {3}{B}, {T}: Each opponent discards a card. Activate only as a sorcery.

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.

At the beginning of each player's draw step, that player draws two additional cards.

At the beginning of each player's draw step, if this artifact is untapped, that player draws an additional card.

Flying At the beginning of your upkeep, each opponent draws a card.

Target player draws cards equal to half the number of cards in their library and loses half their life. Round up each time.

At the beginning of your upkeep, you draw a card and you lose 1 life.

Each other player discards a card. You draw a card for each card discarded this way.

This land enters tapped. {T}: Add {B}. Cycling {B} ({B}, Discard this card: Draw a card.)

This land enters tapped. When this land enters, exile target player's graveyard. {T}: Add {B}.

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

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

This land enters tapped unless you control a Swamp. {T}: Add {B}. {1}{B}{B}, {T}: Draw a card, then you lose life equal to the number of cards in your hand.

{T}: Add {C}. {T}, Sacrifice this land: Put your commander into your hand from the command zone.

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

This land enters tapped. {T}: Add {B}. {2}{B}, {T}, Sacrifice this land: Return target creature card from your graveyard to your hand.

This land enters tapped. {T}: Add {C}. {2}, {T}, Sacrifice this land: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.

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

{T}: Add {B}. {B}, {T}: Target legendary creature gains fear until end of turn. (It can't be blocked except by artifact creatures and/or black creatures.)

({T}: Add {B}.)

{T}: Add {C}. {2}, {T}: This land becomes a copy of target land, except it has this ability.

Each land is a Swamp in addition to its other land types.

{T}: Add {C}. {3}, {T}, Pay life equal to the number of colors in your commanders' color identity: Draw a card.

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

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.) Equip {0}

Whenever a creature deals damage to you, destroy it.

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

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.

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

Add {B}{B}{B}.

{2}, {T}, Sacrifice this artifact: Search your library for a land card, reveal it, put it into your hand, then shuffle.

{T}: Add {B}.

{T}: Add {C}. {1}, {T}, Sacrifice this artifact: Draw a card.

Whenever you tap a Swamp for mana, add an additional {B}. {B}: This creature gets +1/+1 until end of turn.

Nyx Lotus enters 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}.

When this creature enters, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. When this creature dies, you may draw a card.

Destroy target nonlegendary creature.

Destroy all creatures. They can't be regenerated.

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

Destroy target creature. You lose 2 life.

All creatures get -1/-1 until end of turn for each Swamp you control.

Whenever an opponent draws a card, Ob Nixilis deals 1 damage to that player. −2: Destroy target creature. Its controller draws two cards.

Search your library for a card, put that card into your hand, then shuffle. You lose 3 life.

Choose two target players. Each of them searches their library for a card, then shuffles and puts that card on top.