Flying

When Abhorrent Overlord enters the battlefield, create a number of 1/1 black Harpy creature tokens with flying equal to your devotion to black. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.)

At the beginning of your upkeep, sacrifice a creature.

Gain control of target spell. You may choose new targets for it. (If that spell becomes a permanent, it enters the battlefield under your control.)

{T}: Target creature an opponent controls attacks you this turn if able.

{T}, Exile cards from your graveyard equal to the number of opponents you have: Target creature card in your graveyard gains encore until end of turn. The encore cost is equal to its mana cost. (Exile the creature card and pay its mana cost: 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.)

Until end of turn, creatures you control gain "Whenever this creature deals damage to an opponent, you may return target creature that player controls to its owner's hand."

+2: Draw a card. Each player mills two cards.

-5: Put target creature card from a graveyard onto the battlefield under your control.

-11: Gain control of all creatures target opponent controls.

Sacrifice a creature: Add {C}{C}.

Flying, deathtouch

When Baleful Strix enters the battlefield, draw a card.

Flying

{B}: Battlefly Swarm gains deathtouch until end of turn.

Deathtouch

When Bitterheart Witch dies, you may search your library for a Curse card, put it onto the battlefield attached to target player, then shuffle.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

Blighted Agent can't be blocked.

This spell costs {3} less to cast if a creature died this turn.

Flying, deathtouch

Flying

When Cavalier of Gales enters the battlefield, draw three cards, then put two cards from your hand on top of your library in any order.

When Cavalier of Gales dies, shuffle it into its owner's library, then scry 2.

Lifelink

When Cavalier of Night enters the battlefield, you may sacrifice another creature. When you do, destroy target creature an opponent controls.

When Cavalier of Night dies, return target creature card with mana value 3 or less from your graveyard to the battlefield.

Changeling (This card is every creature type.)

Changeling Outcast can't block and can't be blocked.

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

Gain control of target creature with power 2 or less.

---

Surveil 3, then return a creature card from your graveyard to the battlefield.

No more than two creatures can attack you each combat.

Whenever an opponent attacks you and/or one or more planeswalkers you control, exile the top card of that player's library. You may play that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast it.

Enchant player

Whenever enchanted player is attacked, create a 2/2 black Zombie creature token. Each opponent attacking that player does the same.

Enchant player

At the beginning of enchanted player's upkeep, that player reveals cards from the top of their library until they reveal a creature card. Put that card onto the battlefield under your control. That player puts the rest of the revealed cards into their graveyard.

Enchant player

Whenever enchanted player casts a spell, put a spite counter on Curse of Vengeance.

When enchanted player loses the game, you gain X life and draw X cards, where X is the number of spite counters on Curse of Vengeance.

Enchant player

Whenever enchanted player is attacked, you draw a card. Each opponent attacking that player does the same.

{1}, {T}: Add {U}{B}.

{T}: Destroy target land.

At the beginning of your upkeep, unless you pay {B}{B}{B}, tap Demonic Hordes and sacrifice a land of an opponent's choice.

Flying

At the beginning of your upkeep, sacrifice a creature other than Demonic Taskmaster.

Flying, trample

At the beginning of your upkeep, sacrifice a creature.

Sacrifice a creature: Regenerate Devouring Strossus.

Dimir Infiltrator can't be blocked.

Transmute {1}{U}{B} ({1}{U}{B}, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)

Flying, deathtouch

When Dragonlord Silumgar enters the battlefield, gain control of target creature or planeswalker for as long as you control Dragonlord Silumgar.

Flying

At the beginning of your end step, sacrifice a non-Demon creature. If you do, create a token that's a copy of Dreadfeast Demon.

Shadow (This creature can block or be blocked by only creatures with shadow.)

At the beginning of your upkeep, sacrifice Drifter il-Dal unless you pay {U}.

At the beginning of your upkeep, unless you sacrifice an Island, sacrifice Elder Spawn and it deals 6 damage to you.

Elder Spawn can't be blocked by red creatures.

Flying, deathtouch

Embodiment of Agonies enters the battlefield with a +1/+1 counter on it for each different mana cost among nonland cards in your graveyard. (For example, {2}{B} and {1}{B}{B} are different mana costs.)

Each creature has "When this creature dies, choose target opponent. That player puts this card from its owner's graveyard onto the battlefield under their control at the beginning of the next end step."

Non-Eye creatures you control can't attack.

Whenever Evil Eye of Urborg becomes blocked by a creature, destroy that creature.

{1}{U}, Exile Expendable Lackey from your graveyard: Create a 1/1 blue Fish creature token with "This creature can't be blocked." Activate only as a sorcery.

At the beginning of your upkeep, scry 1.

{5}{U}: Exchange control of Eyes Everywhere and target nonland permanent. Activate only as a sorcery.

Flying

{B}: Fetid Imp gains deathtouch until end of turn. (Any amount of damage it deals to a creature is enough to destroy it.)

Draw two cards, then discard two cards. Untap up to three lands.

Deathtouch

When Gonti, Lord of Luxury enters the battlefield, look at the top four cards of target opponent's library, exile one of them face down, then put the rest on the bottom of that library in a random order. You may cast that card for as long as it remains exiled, and mana of any type can be spent to cast it.

Exploit (When this creature enters the battlefield, you may sacrifice a creature.)

When Graf Reaver exploits a creature, destroy target planeswalker.

At the beginning of your upkeep, Graf Reaver deals 1 damage to you.

At the beginning of your upkeep, sacrifice a permanent.

Whenever Greater Harvester deals combat damage to a player, that player sacrifices two permanents.

Gudul Lurker can't be blocked.

Megamorph {U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)

Whenever a creature attacks you, its controller loses 1 life.

Haste

At the beginning of the end step, sacrifice Ichorid.

At the beginning of your upkeep, if Ichorid is in your graveyard, you may exile a black creature card other than Ichorid from your graveyard. If you do, return Ichorid to the battlefield.

Cast this spell only during the declare blockers step on an opponent's turn.

Remove all attacking creatures from combat and untap them. After this phase, there is an additional combat phase. Each of those creatures attacks that combat if able. They can't attack you or planeswalkers you control that combat.

At the beginning of your upkeep, sacrifice two Swamps. If you can't, tap Infernal Denizen, and an opponent may gain control of a creature you control of their choice for as long as Infernal Denizen remains on the battlefield.

{T}: Gain control of target creature for as long as Infernal Denizen remains on the battlefield.

Gain control of target artifact or creature. Untap it.

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

At the beginning of your end step, target opponent gains control of up to one target creature you control. Put two +1/+1 counters on it and tap it. It's goaded for the rest of the game and it gains "This creature can't be sacrificed." (It attacks each combat if able and attacks a player other than you if able.)

Whenever a creature you own but don't control attacks, you draw 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.

At the beginning of your upkeep, you may put a treasure counter on Legacy's Allure.

Sacrifice Legacy's Allure: Gain control of target creature with power less than or equal to the number of treasure counters on Legacy's Allure. (This effect lasts indefinitely.)

Flying, trample

At the beginning of your upkeep, sacrifice a creature other than Liege of the Pit. If you can't, Liege of the Pit deals 7 damage to you.

Morph {B}{B}{B}{B} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Flying, trample

At the beginning of your upkeep, sacrifice a creature other than Lord of the Pit. If you can't, Lord of the Pit deals 7 damage to you.

When Marchesa's Decree enters the battlefield, you become the monarch.

Whenever a creature attacks you or a planeswalker you control, that creature's controller loses 1 life.

Gain control of X target creatures and/or planeswalkers.

Dominate Monster -- When Mind Flayer enters the battlefield, gain control of target creature for as long as you control Mind Flayer.

Mist-Cloaked Herald can't be blocked.

Flash

You may have Mocking Doppelganger enter the battlefield as a copy of a creature an opponent controls, except it has "Other creatures with the same name as this creature are goaded." (They attack each combat if able and attack a player other than you if able.)

Flying, deathtouch, lifelink

Nighthawk Scavenger's power is equal to 1 plus the number of card types among cards in your opponents' graveyards.

Whenever a creature deals damage to you, destroy it.

Defender, flying

Wither (This deals damage to creatures in the form of -1/-1 counters.)

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

At the beginning of your upkeep, sacrifice a creature if you don't control an Ogre.

Enchant creature

Enchanted creature gets +2/+2 and is goaded. (It attacks each combat if able and attacks a player other than you if able.)

Whenever enchanted creature attacks, its controller loses 2 life and you gain 2 life.

Whenever an opponent casts a spell, you may exchange control of Perplexing Chimera and that spell. If you do, you may choose new targets for the spell. (If the spell becomes a permanent, you control that permanent.)

Enchant creature (Target a creature as you cast this. This card enters the battlefield attached to that creature.)

You control enchanted creature.

Sacrifice a creature: Add one mana of any color.

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.

Enchant creature

Enchanted creature gets +2/+2 and is goaded. (It attacks each combat if able and attacks a player other than you if able.)

Whenever enchanted creature attacks, you scry 2.

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.)

When Ravenous Chupacabra enters the battlefield, destroy target creature an opponent controls.

Sacrifice a Human: Transform Ravenous Demon. Activate only as a sorcery.

Flying, trample

At the beginning of your upkeep, sacrifice a Human. If you can't, tap Archdemon of Greed and it deals 9 damage to you.

Untap all creatures you control and all creatures target opponent controls. You and that opponent each gain control of all creatures the other controls until end of turn. Those creatures gain haste until end of turn.

Whenever a creature attacks you or a planeswalker you control, that creature's controller loses 1 life and you gain 1 life.

{1}, {T}: Exile any number of cards from your hand face down. Put that many cards from the top of your library into your hand. Then look at the exiled cards and put them on top of your library in any order.

Flying

At the beginning of your upkeep, sacrifice a land. If you sacrifice an Island this way, Serendib Djinn deals 3 damage to you.

When you control no lands, sacrifice Serendib Djinn.

Flying

When Shadowborn Demon enters the battlefield, destroy target non-Demon creature.

At the beginning of your upkeep, if there are fewer than six creature cards in your graveyard, sacrifice a creature.

{3}{U}, Exile Shifty Doppelganger: You may put a creature card from your hand onto the battlefield. If you do, that creature gains haste until end of turn. At the beginning of the next end step, sacrifice that creature. If you do, return Shifty Doppelganger to the battlefield.

Flying

{1}{U}: Target creature an opponent controls attacks this turn if able.

{1}{B}, {T}: Attacking creatures get -1/-1 until end of turn.

Flying

{U}, Sacrifice Siren Stormtamer: Counter target spell or ability that targets you or a creature you control.

Slither Blade can't be blocked.

Flying

Stormbound Geist can block only creatures with flying.

Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)

Exchange control of target noncreature spell and target creature. Then the spell's controller may choose new targets for it.

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

At the beginning of each end step, if an opponent lost 3 or more life this turn, you may draw a card. (Damage causes loss of life.)

{T}: Add {C}.

{T}: Add {U} or {B}. Activate only if you control a Swamp.

For each opponent, gain control of up to one target creature or planeswalker that player controls with mana value 3 or less.

Shadow (This creature can block or be blocked by only creatures with shadow.)

Whenever Thalakos Deceiver attacks and isn't blocked, you may sacrifice it. If you do, gain control of target creature. (This effect lasts indefinitely.)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I -- You may exchange control of two target creatures.

II -- You may exchange control of two target nonbasic, noncreature permanents that share a card type.

III -- Target player loses 3 life and you gain 3 life.

Flying

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

Tormented Soul can't block and can't be blocked.

Triton Shorestalker can't be blocked.

Flying, deathtouch, lifelink

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

Gain control of target creature if its toughness is 2 or less. If this spell's madness cost was paid, instead gain control of that creature if its toughness is X or less.

Flying (This creature can't be blocked except by creatures with flying or reach.)

{B}: Regenerate Will-o'-the-Wisp. (The next time this creature would be destroyed this turn, it isn't. Instead tap it, remove all damage from it, and remove it from combat.)

Flying, trample

At the beginning of your upkeep, sacrifice a creature other than Xathrid Demon, then each opponent loses life equal to the sacrificed creature's power. If you can't sacrifice a creature, tap Xathrid Demon and you lose 7 life.

Flying (This creature can't be blocked except by creatures with flying or reach.)

First strike (This creature deals combat damage before creatures without first strike.)

At the beginning of your upkeep, you may sacrifice an artifact. If you don't, tap Yawgmoth Demon and it deals 2 damage to you.