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.

Flying At the beginning of each opponent's end step, that player chooses up to two creatures they control, then sacrifices the rest.

At the beginning of your upkeep, you may sacrifice Blood Speaker. If you do, search your library for a Demon card, reveal that card, put it into your hand, then shuffle. Whenever a Demon enters the battlefield under your control, return Blood Speaker from your graveyard to your hand.

Trample Devastating Charge — Other creatures you control have trample.

Flying, trample Whenever Bloodthirster deals combat damage to a player, untap it. After this combat phase, there is an additional combat phase. Bloodthirster can't attack a player it has already attacked this turn.

As an additional cost to cast this spell, sacrifice a creature. Flying, trample

You may have Evil Twin enter the battlefield as a copy of any creature on the battlefield, except it has "{U}{B}, {T}: Destroy target creature with the same name as this creature."

Reverberating Summons — At the beginning of your end step, each opponent loses 2 life. Then for each opponent who has less life than you, create a 1/3 black Demon creature token named Plaguebearer of Nurgle.

Locus of Slaanesh — Demon spells you cast cost {2} less to cast. Other Demons you control have haste.

{B}, Sacrifice a creature: Scry 2. {2}{R}, {T}: Exile the top card of your library. You may play that card this turn. When you exile a nonland card this way, Hidetsugu, Devouring Chaos deals damage equal to the exiled card's mana value to any target.

Flying At the beginning of your upkeep, draw a card unless target opponent sacrifices a creature or pays 3 life.

When Kardur, Doomscourge enters the battlefield, until your next turn, creatures your opponents control attack each combat if able and attack a player other than you if able. Whenever an attacking creature dies, each opponent loses 1 life and you gain 1 life.

When Lord Xander, the Collector enters the battlefield, target opponent discards half the cards in their hand, rounded down. Whenever Lord Xander attacks, defending player mills half their library, rounded down. When Lord Xander dies, target opponent sacrifices half the nonland permanents they control, rounded down.

Protection from white Marauding Knight gets +1/+1 for each Plains your opponents control.

First strike, deathtouch Master of Cruelties can only attack alone. Whenever Master of Cruelties attacks a player and isn't blocked, that player's life total becomes 1. Master of Cruelties assigns no combat damage this combat.

You may have Mirror Image enter the battlefield as a copy of a creature you control.

Flying, trample Whenever an opponent searches their library, that player sacrifices a creature and loses 10 life. Whenever another creature dies, put a +1/+1 counter on Ob Nixilis, Unshackled.

Flying When Overseer of the Damned enters the battlefield, you may destroy target creature. Whenever a nontoken creature an opponent controls dies, create a tapped 2/2 black Zombie creature token.

Whenever a permanent an opponent controls is put into a graveyard, put that card onto the battlefield under your control unless that opponent pays 3 life.

Flying, trample When Rakdos, the Showstopper enters the battlefield, flip a coin for each creature that isn't a Demon, Devil, or Imp. Destroy each creature whose coin comes up tails.

Flying Other Demons, Devils, Imps, and Tieflings you control get +1/+1 and have lifelink. At the beginning of each end step, if a creature card was put into your graveyard from anywhere this turn, create a 1/1 red Devil creature token with "When this creature dies, it deals 1 damage to any target."

Flying Morbid — At the beginning of each end step, if a creature died this turn, destroy target non-Demon creature.

Flying When Rune-Scarred Demon enters the battlefield, search your library for a card, put it into your hand, then shuffle.

If a source you control would deal noncombat damage to an opponent or a permanent an opponent controls, it deals double that damage to that player or permanent instead. {1}{R/P}{R/P}, Discard two cards: Put an indestructible counter on Solphim, Mayhem Dominus. ({R/P} can be paid with either {R} or 2 life.)

Deathtouch Boast — {1}{B}: Target player searches their library for a card, then shuffles and puts that card on top. (Activate only if this creature attacked this turn and only once each turn.)

White spells cost {3} more to cast. Activated abilities of white enchantments cost {3} more to activate.

Whenever an opponent casts a white spell, they lose 2 life.

When Liliana's Contract enters the battlefield, you draw four cards and you lose 4 life. At the beginning of your upkeep, if you control four or more Demons with different names, you win the game.

If an opponent would gain life, that player loses that much life instead.

Whenever a creature enters the battlefield under your control, it deals damage equal to its power to any target.

The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.

Chaotic Backlash deals damage to target player equal to twice the number of white and/or blue permanents they control.

Target player sacrifices a creature.

Until end of turn, target creature gains "When this creature dies, return it to the battlefield tapped under its owner's control with a +1/+1 counter on it."

Choose one — • Exile target player's graveyard. • Destroy target artifact. • Each creature deals 1 damage to its controller.

Crumbling Necropolis enters the battlefield tapped. {T}: Add {U}, {B}, or {R}.

Dragonskull Summit enters the battlefield tapped unless you control a Swamp or a Mountain. {T}: Add {B} or {R}.

Destroy all white permanents.

Counter target noncreature spell. Its controller creates two Treasure tokens. (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")

Counter target spell. Its controller may draw up to two cards at the beginning of the next turn's upkeep. You draw a card at the beginning of the next turn's upkeep.

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

Lands you control have "{T}: Add one mana of any color." {T}: Add one mana of any color.

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

Counter target spell.

Return target nonland permanent you don't control to its owner's hand. Overload {6}{U} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Add {B}{B}{B}.

Search your library for a card, put that card into your graveyard, then shuffle.

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

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

Exile two target artifacts, creatures, and/or lands you control, then return those cards to the battlefield under your control.

When Gray Merchant of Asphodel enters the battlefield, each opponent loses X life, where X is your devotion to black. You gain life equal to the life lost this way. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.)

As Herald's Horn enters the battlefield, choose a creature type. Creature spells you cast of the chosen type cost {1} less to cast. At the beginning of your upkeep, look at the top card of your library. If it's a creature card of the chosen type, you may reveal it and put it into your hand.

({T}: Add {U}.)

Enchant creature or planeswalker you control When enchanted permanent dies or is put into exile, return that card to the battlefield under your control.

Choose a creature type. Destroy all creatures that aren't of the chosen type.

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

({T}: Add {R}.)

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

Path of Ancestry enters the battlefield tapped. {T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Whenever Rakshasa Debaser attacks, put target creature card from defending player's graveyard onto the battlefield under your control. Encore {6}{B}{B} ({6}{B}{B}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

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

Whenever an opponent casts a spell, you may draw a card unless that player pays {1}.

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.

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

({T}: Add {B}.)

Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control.) Equip {1}

Training Center enters the battlefield tapped unless you have two or more opponents. {T}: Add {U} or {R}.

{2}, {T}, Sacrifice Wayfarer's Bauble: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.