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.

When Abyssal Gatekeeper dies, each player sacrifices a creature.

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

Search your library for a creature card, reveal it, put it into your hand, then shuffle.

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

Draw two cards.

If an effect would create one or more tokens under your control, it creates twice that many of those tokens instead.

At the beginning of your upkeep, each player sacrifices a non-Vampire creature.

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

Whenever a creature dies, put a charge counter on Black Market.

At the beginning of your precombat main phase, add {B} for each charge counter on Black Market.

Noncreature spells you cast cost {2} less to cast.

Whenever you cast a noncreature spell, counter that spell unless you sacrifice a creature.

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

Destroy target creature.

Flying

Whenever Butcher of Malakir or another creature you control dies, each opponent sacrifices a creature.

Vigilance (Attacking doesn't cause this creature to tap.)

Other Soldier creatures you control get +1/+1 and have vigilance.

When Captain of the Watch enters the battlefield, create three 1/1 white Soldier creature tokens.

Create three 1/1 white Soldier creature tokens.

When Carrier Thrall dies, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this creature: Add {C}."

Devoid (This card has no color.)

When Catacomb Sifter enters the battlefield, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this creature: Add {C}."

Whenever another creature you control dies, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Enchant creature

Enchanted creature has "At the beginning of your upkeep, create a 1/1 white Human creature token."

At the beginning of your upkeep, sacrifice Contamination unless you sacrifice a creature.

If a land is tapped for mana, it produces {B} instead of any other type and amount.

As an additional cost to cast this spell, sacrifice an artifact or creature.

Draw two cards.

Crovax the Cursed enters the battlefield with four +1/+1 counters on it.

At the beginning of your upkeep, you may sacrifice a creature. If you do, put a +1/+1 counter on Crovax. If you don't, remove a +1/+1 counter from Crovax.

{B}: Crovax gains flying until end of turn.

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

Add {B}{B}{B}{B}.

Whenever a creature you control dies, you draw a card and you lose 1 life.

Whenever another creature dies, you may gain 1 life.

Create X 4/4 white Angel creature tokens with flying.

Cycling {2}{W} ({2}{W}, Discard this card: Draw a card.)

When you cycle Decree of Justice, you may pay {X}. If you do, create X 1/1 white Soldier creature tokens.

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

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

Flash

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

When Doomed Dissenter dies, create a 2/2 black Zombie creature token.

Trample

At the beginning of your upkeep, sacrifice a creature. You gain life equal to that creature's toughness.

When Driver of the Dead dies, return target creature card with mana value 2 or less from your graveyard to the battlefield.

Protection from white

At the beginning of your end step, you lose 4 life.

Whenever a creature dies, you gain 2 life.

When Dutiful Attendant dies, return another target creature card from your graveyard to your hand.

Creatures you control get +1/+1 and have flying and indestructible.

At the beginning of your upkeep, sacrifice a creature. If you can't, sacrifice Eldrazi Monument.

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

Search your library for a creature card with mana value X or less, where X is 2 plus the sacrificed creature's mana value. Put that card onto the battlefield, then shuffle. Exile Eldritch Evolution.

Lifelink

Whenever another creature dies, put a +1/+1 counter on Elenda, the Dusk Rose.

When Elenda dies, create X 1/1 white Vampire creature tokens with lifelink, where X is Elenda's power.

Vigilance

Other creatures you control get +2/+2.

Creatures your opponents control get -2/-2.

As an additional cost to cast this spell, sacrifice X creatures.

Destroy X target creatures.

+2: You gain 1 life for each creature you control.

-2: Create three 1/1 white Soldier creature tokens.

-5: Destroy all other permanents except for lands and tokens.

+1: Create a 1/1 white Soldier creature token.

+1: Target creature gets +3/+3 and gains flying until end of turn.

-8: You get an emblem with "Artifacts, creatures, enchantments, and lands you control have indestructible."

Flying

Landfall -- Whenever a land enters the battlefield under your control, you may create a 1/1 white Bird creature token with flying.

Create X 4/4 white Angel creature tokens with flying.

Miracle {X}{W}{W} (You may cast this card for its miracle cost when you draw it if it's the first card you drew this turn.)

Flying

Whenever Falkenrath Noble or another creature dies, target player loses 1 life and you gain 1 life.

Create two 1/1 white Human creature tokens.

Fateful hour -- If you have 5 or less life, create five of those tokens instead.

Whenever another creature you control dies, put a +1/+1 counter on Gavony Unhallowed.

Create X X/X green Ooze creature tokens.

Ghave, Guru of Spores enters the battlefield with five +1/+1 counters on it.

{1}, Remove a +1/+1 counter from a creature you control: Create a 1/1 green Saproling creature token.

{1}, Sacrifice a creature: Put a +1/+1 counter on target creature.

Whenever a nontoken creature you control dies, create a 1/1 green Saproling creature token.

Whenever a creature you control dies, each other player sacrifices a creature.

Battle cry (Whenever this creature attacks, each other attacking creature gets +1/+0 until end of turn.)

Whenever Hero of Bladehold attacks, create two 1/1 white Soldier creature tokens that are tapped and attacking.

At the beginning of your upkeep, Jinxed Idol deals 2 damage to you.

Sacrifice a creature: Target opponent gains control of Jinxed Idol.

At the beginning of your upkeep, you may have target creature you control get +X/+X until end of turn, where X is the number of creatures you control. If you do, sacrifice that creature at the beginning of the next end step.

When Knight-Captain of Eos enters the battlefield, create two 1/1 white Soldier creature tokens.

{W}, Sacrifice a Soldier: Prevent all combat damage that would be dealt this turn.

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

Draw cards equal to the sacrificed creature's power.

Lifelink

Whenever another nontoken creature you control dies, exile Liliana, Heretical Healer, then return her to the battlefield transformed under her owner's control. If you do, create a 2/2 black Zombie creature token.

+2: Each player discards a card.

-X: Return target nonlegendary creature card with mana value X from your graveyard to the battlefield.

-8: You get an emblem with "Whenever a creature dies, return it to the battlefield under your control at the beginning of the next end step."

Create two 1/1 white Spirit creature tokens with flying.

Flashback {1}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

At the beginning of each opponent's end step, if you didn't lose life this turn, you may put a quest counter on Luminarch Ascension. (Damage causes loss of life.)

{1}{W}: Create a 4/4 white Angel creature token with flying. Activate only if Luminarch Ascension has four or more quest counters on it.

Flying

At the beginning of your upkeep, you may create a 1/1 white Spirit creature token with flying.

Whenever a creature an opponent controls dies, put a +1/+1 counter on Malakir Cullblade.

Create X 1/1 white Soldier creature tokens. If X is 5 or more, destroy all other creatures.

As an additional cost to cast this spell, sacrifice a creature or land.

Draw two cards.

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

Add X mana of any one color, where X is 1 plus the sacrificed creature's mana value. Spend this mana only to cast creature spells.

Mikaeus, the Lunarch enters the battlefield with X +1/+1 counters on it.

{T}: Put a +1/+1 counter on Mikaeus.

{T}, Remove a +1/+1 counter from Mikaeus: Put a +1/+1 counter on each other creature you control.

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Whenever a Human deals damage to you, destroy it.

Other non-Human creatures you control get +1/+1 and have undying. (When a creature with undying 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.)

Devour 2 (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with twice that many +1/+1 counters on it.)

At the beginning of your upkeep, create a 1/1 green Saproling creature token for each +1/+1 counter on Mycoloth.

Create a 1/1 white Kor Soldier creature token for each creature you control.

Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

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.

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

Whenever Odric, Master Tactician and at least three other creatures attack, you choose which creatures block this combat and how those creatures block.

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.

Sacrifice a creature: Add one mana of any color.

Cumulative upkeep--Sacrifice a creature. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Whenever another creature you control dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

At the beginning of your upkeep, destroy the creature with the least power. It can't be regenerated. If two or more creatures are tied for least power, you choose one of them.

When there are no creatures on the battlefield, sacrifice Porphyry Nodes.

When a creature you control dies, sacrifice Promise of Bunrei. If you do, create four 1/1 colorless Spirit creature tokens.

Whenever a creature dies, you may put a quest counter on Quest for the Gravelord.

Remove three quest counters from Quest for the Gravelord and sacrifice it: Create a 5/5 black Zombie Giant creature token.

Create two 1/1 white Soldier creature tokens.

Whenever another creature dies, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

{B}: Reaper of the Wilds gains deathtouch until end of turn.

{1}{G}: Reaper of the Wilds gains hexproof until end of turn.

Flying

Whenever another non-Spirit creature you control dies, create a 1/1 white Spirit creature token with flying.

Whenever a creature an opponent controls dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

At the beginning of your upkeep, if you control ten or more Treasures, you win the game.

{2}{G/W}, {T}: Create a 1/1 green and white Elf Warrior creature token.

{4}{G/W}{G/W}, {T}: For each creature token you control, create a token that's a copy of that creature.

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

I, II -- Create two 0/1 black Cleric creature tokens.

III -- Create a 6/6 black Demon creature token with flying, trample, and "At the beginning of your upkeep, sacrifice another creature. If you can't, this creature deals 6 damage to you."

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

Gain control of target nonartifact, nonblack creature.

At the beginning of your upkeep, sacrifice Sacred Mesa unless you sacrifice a Pegasus.

{1}{W}: Create a 1/1 white Pegasus creature token with flying.

Whenever you sacrifice a black creature, you may pay 2 life. If you do, each other player sacrifices a creature.

Whenever you sacrifice a green creature, you may gain 2 life.

Flying

Whenever another creature dies, you may put a +1/+1 counter on Scavenger Drake.

Whenever a creature dies, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

{4}{B}: Each opponent loses 2 life and you gain 2 life. Activate only if there are four or more creature cards in your graveyard.

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 your upkeep or whenever you cast a white spell, put a charge counter on Shrine of Loyal Legions.

{3}, {T}, Sacrifice Shrine of Loyal Legions: Create a 1/1 colorless Phyrexian Myr artifact creature token for each charge counter on Shrine of Loyal Legions.

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

Draw two cards.

Whenever a Saproling you control dies, Slimefoot, the Stowaway deals 1 damage to each opponent and you gain 1 life.

{4}: Create a 1/1 green Saproling creature token.

Devoid (This card has no color.)

Flying

At the beginning of your upkeep, sacrifice a creature.

Whenever you sacrifice a creature, draw a card.

Create three 1/1 white Spirit creature tokens with flying.

Create X 1/1 white Pegasus creature tokens with flying, where X is your life total.

Flying

Swarm of Bloodflies enters the battlefield with two +1/+1 counters on it.

Whenever another creature dies, put a +1/+1 counter on Swarm of Bloodflies.

Sacrifice three white creatures: Exile target creature.

Whenever another black creature you control dies, create a 1/1 white Spirit creature token with flying.

If you have less life than an opponent, you gain 6 life. If you control fewer creatures than an opponent, create three 1/1 white Soldier creature tokens.

As an additional cost to cast this spell, you may sacrifice any number of creatures. This spell costs {2} less to cast for each creature sacrificed this way.

When Torgaar, Famine Incarnate enters the battlefield, up to one target player's life total becomes half their starting life total, rounded down.

Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)

Whenever a creature an opponent controls dies, you may cast target instant card from your graveyard. If that spell would be put into a graveyard, exile it instead.

Whenever another Human creature dies, put a +1/+1 counter on Village Cannibals.

Create X 2/2 white Cat creature tokens. Shuffle White Sun's Zenith into its owner's library.

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.

Haste

Whenever a creature an opponent controls dies, put a +1/+1 counter on Yahenni, Undying Partisan.

Sacrifice another creature: Yahenni gains indestructible until end of turn.

Whenever Zulaport Cutthroat or another creature you control dies, each opponent loses 1 life and you gain 1 life.