, : Create a 1/1 green Snake creature token. If you control ten or more creatures, flip Orochi Eggwatcher.

Lifelink

Delirium — At the beginning of your end step, if there are four or more card types among cards in your graveyard, each opponent may sacrifice a nonland permanent of their choice or discard a card. Then Osseous Sticktwister deals damage equal to its power to each opponent who didn't sacrifice a permanent or discard a card this way.

Sacrifice a land: You gain 3 life.

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.

At the beginning of your upkeep, put a spore counter on Pallid Mycoderm.

Remove three spore counters from Pallid Mycoderm: Create a 1/1 green Saproling creature token.

Sacrifice a Saproling: Each creature you control that's a Fungus or a Saproling gets +1/+1 until end of turn.

, Sacrifice an artifact: Penregon Strongbull gets +1/+1 until end of turn and deals 1 damage to each opponent.

, Sacrifice a creature: Search your library for a land card with a basic land type, put it onto the battlefield tapped, then shuffle.

When Persuasive Interrogators enters, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

Whenever you sacrifice a Clue, target opponent gets two poison counters. (A player with ten or more poison counters loses the game.)

Sacrifice a creature: Add one mana of any color.

Trample

When Phyrexian Dreadnought enters, sacrifice it unless you sacrifice any number of creatures with total power 12 or greater.

, Sacrifice Phyrexian Plaguelord: Target creature gets -4/-4 until end of turn.

Sacrifice a creature: Target creature gets -1/-1 until end of turn.

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.)

When Phyrexian War Beast leaves the battlefield, sacrifice a land and Phyrexian War Beast deals 1 damage to you.

At the beginning of each player's upkeep, that player may sacrifice a creature of their choice. If that player doesn't, they lose 5 life and you sacrifice Pillar Tombs of Aku.

Whenever Piper Wright deals combat damage to a player, investigate that many times. (To investigate, create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

Whenever you sacrifice a Clue, put a +1/+1 counter on target creature you control.

When Piston Sledge enters, attach it to target creature you control.

Equipped creature gets +3/+1.

Equip—Sacrifice an artifact.

, Sacrifice a creature: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Trample

Polar Kraken enters tapped.

Cumulative upkeep—Sacrifice a land. (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.)

When Polygraph Orb enters, look at the top four cards of your library. Put two of them into your hand and the rest into your graveyard. You lose 2 life.

, , Collect evidence 3: Each opponent loses 3 life unless they discard a card or sacrifice a creature. (To collect evidence 3, exile cards with total mana value 3 or greater from your graveyard.)

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

Destroy target creature or planeswalker.

When Predatory Nightstalker enters, you may have target opponent sacrifice a creature of their choice.

Kicker—Sacrifice a creature. (You may sacrifice a creature in addition to any other costs as you cast this spell.)

Search your library for a basic land card, put that card onto the battlefield, then shuffle. If this spell was kicked, instead search your library for up to two basic land cards, put them onto the battlefield, then shuffle.

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

When Profaner of the Dead exploits a creature, return to their owners' hands all creatures your opponents control with toughness less than the exploited creature's toughness.

At the beginning of your end step, you may sacrifice a non-Demon creature. If you do, populate. (Create a token that's a copy of a creature token you control.)

When Provisions Merchant enters, create a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

Whenever Provisions Merchant attacks, you may sacrifice a Food. If you do, attacking creatures get +1/+1 and gain trample until end of turn.

Cumulative upkeep—Draw a card. (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.)

At the beginning of your end step, sacrifice a land and discard your hand.

, , Sacrifice a creature: Search your library for a creature card that shares a creature type with the sacrificed creature and has mana value equal to 1 plus that creature's mana value. Put that card onto the battlefield, then shuffle. Activate only as a sorcery.

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

When Qarsi Sadist exploits a creature, target opponent loses 2 life and you gain 2 life.

Hellbent — , Sacrifice a creature or land: Draw a card. Activate only if you have no cards in hand.

Raiding Party can't be the target of white spells or abilities from white sources.

Sacrifice an Orc: Each player may tap any number of untapped white creatures they control. For each creature tapped this way, that player chooses up to two Plains. Then destroy all Plains that weren't chosen this way by any player.

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

When Rakshasa Gravecaller exploits a creature, create two 2/2 black Zombie creature tokens.

, , Sacrifice a creature: Draw a card and put a soul counter on this artifact. Activate only as a sorcery.

, , Sacrifice this artifact: Each opponent loses life equal to the number of soul counters on this artifact.

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

Flying

, Sacrifice another creature: Put a +1/+1 counter on Ravenous Harpy.

Corrupted — When Ravenous Necrotitan enters, sacrifice a creature unless an opponent has three or more poison counters.

Flying

At the beginning of your upkeep, you may sacrifice a nonartifact creature. If you do, put a +1/+1 counter on Ravenous Vampire. If you don't, tap Ravenous Vampire.

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

Destroy target land.

Flying

Delirium — Sacrifice another creature: Reaper of Flight Moonsilver gets +2/+1 until end of turn. Activate only if there are four or more card types among cards in your graveyard.

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

Reckless Abandon deals 4 damage to any target.

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

You gain life equal to the sacrificed permanent's mana value. Draw two cards.

Menace

When this creature enters, create two 1/1 black Rat creature tokens with "This token can't block."

At the beginning of your upkeep, you may sacrifice another creature. If you do, put a +1/+1 counter on this creature and exile the top card of your library. You may play that card this turn.

Defender

, , Sacrifice a land: Draw a card and create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

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

Search your library for a basic land card, put that card onto the battlefield, then shuffle.

Draw a card at the beginning of the next turn's upkeep.

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

When Repository Skaab exploits a creature, return target instant or sorcery card from your graveyard to your hand.

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

Choose target creature card in your graveyard. Return that card and the sacrificed card to the battlefield under your control at the beginning of your next upkeep. Exile Rescue from the Underworld.

(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.

When Riveting Rigger enters, you may sacrifice another artifact. If you do, put two +1/+1 counters on Riveting Rigger and it assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

When Rogue Elephant enters, sacrifice it unless you sacrifice a Forest.

Casualty 1 (As you cast this spell, you may sacrifice a creature with power 1 or greater. When you do, copy this spell and you may choose a new target for the copy.)

Tap target creature. It doesn't untap during its controller's next untap step.

Draw a card.