Flying

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

When Avenger of Zendikar enters the battlefield, create a 0/1 green Plant creature token for each land you control.

Landfall -- Whenever a land enters the battlefield under your control, you may put a +1/+1 counter on each Plant creature you control.

At the beginning of your upkeep, you may create a 0/1 colorless Eldrazi Spawn creature token. It has "Sacrifice this creature: Add {C}."

Whenever Blood Artist or another creature dies, target player loses 1 life and you gain 1 life.

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

Each other creature you control enters the battlefield with an additional X +1/+1 counters on it, where X is the number of +1/+1 counters on Bloodspore Thrinax.

Blooming Marsh enters the battlefield tapped unless you control two or fewer other lands.

{T}: Add {B} or {G}.

{T}: Choose any number of target creatures. Each of those creatures gains persist until end of turn. (When it 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.)

Creatures with power less than Champion of Lambholt's power can't block creatures you control.

Whenever another creature enters the battlefield under your control, put a +1/+1 counter on Champion of Lambholt.

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

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

Sacrifice Commander's Sphere: Draw a card.

If one or more +1/+1 counters would be put on a creature you control, twice that many +1/+1 counters are put on it instead.

Other black creatures you control get +1/+1.

Other green creatures you control get +1/+1.

At the beginning of your upkeep, you may create a 1/1 black and green Worm creature token.

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

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

Each player loses X life, discards X cards, sacrifices X creatures, then sacrifices X lands.

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.

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.

Whenever you cast a creature spell, create X 1/1 black Thrull creature tokens, where X is that spell's mana value.

When you control seven or more Thrulls, sacrifice Endrek Sahr, Master Breeder.

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Fertilid enters the battlefield with two +1/+1 counters on it.

{1}{G}, Remove a +1/+1 counter from Fertilid: Target player searches their library for a basic land card, puts it onto the battlefield tapped, then shuffles.

When Fleshbag Marauder enters the battlefield, each player sacrifices a creature.

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

Devoid (This card has no color.)

At the beginning of your upkeep, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this creature: Add {C}."

{1}{G}, Sacrifice From Beyond: Search your library for an Eldrazi card, reveal it, put it into your hand, then shuffle.

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

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

Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)

{T}: Add {G} for each +1/+1 counter on Gyre Sage.

If one or more +1/+1 counters would be put on a creature you control, that many plus one +1/+1 counters are put on it instead.

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

Search your library for up to two basic land cards, put them onto the battlefield, then shuffle.

Permanents you control gain hexproof and indestructible until end of turn.

{T}: Add {C}.

{T}, Sacrifice a creature: You gain 1 life.

Change the target of target spell with a single target. You lose life equal to that spell's mana value.

Draw a card for each creature you control with a +1/+1 counter on it. Those creatures gain indestructible until end of turn. (Damage and effects that say "destroy" don't destroy them.)

Jarad, Golgari Lich Lord gets +1/+1 for each creature card in your graveyard.

{1}{B}{G}, Sacrifice another creature: Each opponent loses life equal to the sacrificed creature's power.

Sacrifice a Swamp and a Forest: Return Jarad from your graveyard to your hand.

Enchant creature you control

When enchanted creature dies, return it to the battlefield under your control, then return Journey to Eternity to the battlefield transformed under your control.

(Transforms from Journey to Eternity.)

{T}: Add one mana of any color.

{3}{B}{G}, {T}: Return target creature card from your graveyard to the battlefield.

Trample

Kalonian Hydra enters the battlefield with four +1/+1 counters on it.

Whenever Kalonian Hydra attacks, double the number of +1/+1 counters on each creature you control.

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

{1}{B}{G}: Target creature gets +1/+1 and gains intimidate until end of turn. (It can't be blocked except by artifact creatures and/or creatures that share a color with it.)

{2}{B}{G}, Sacrifice a nontoken creature: Create X 1/1 green Saproling creature tokens, where X is the sacrificed creature's toughness.

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

Equip {0}

{T}: Add {C}.

{T}: Add {B} or {G}. Llanowar Wastes deals 1 damage to you.

If Lotus Vale would enter the battlefield, sacrifice two untapped lands instead. If you do, put Lotus Vale onto the battlefield. If you don't, put it into its owner's graveyard.

{T}: Add three mana of any one color.

Mana Vault doesn't untap during your untap step.

At the beginning of your upkeep, you may pay {4}. If you do, untap Mana Vault.

At the beginning of your draw step, if Mana Vault is tapped, it deals 1 damage to you.

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

Whenever another Elf enters the battlefield under your control, put a +1/+1 counter on Marwyn, the Nurturer.

{T}: Add an amount of {G} equal to Marwyn's power.

Flying

Whenever a player sacrifices another permanent, put a +1/+1 counter on each creature you control.

When Merciless Executioner enters the battlefield, each player sacrifices a creature.

{T}: Add {C}.

{1}, {T}, Sacrifice Mind Stone: Draw a card.

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.

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

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.")

When Plaguecrafter enters the battlefield, each player sacrifices a creature or planeswalker. Each player who can't discards a card.

Flying

When Puppeteer Clique enters the battlefield, put target creature card from an opponent's graveyard onto the battlefield under your control. It gains haste. At the beginning of your next end step, exile it.

Persist (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.)

{1}{B}: Return Reassembling Skeleton from your graveyard to the battlefield tapped.

Reyhan, Last of the Abzan enters the battlefield with three +1/+1 counters on it.

Whenever a creature you control dies or is put into the command zone, if it had one or more +1/+1 counters on it, you may put that many +1/+1 counters on target creature.

Partner (You can have two commanders if both have partner.)

When Rishkar, Peema Renegade enters the battlefield, put a +1/+1 counter on each of up to two target creatures.

Each creature you control with a counter on it has "{T}: Add {G}."

Rupture Spire enters the battlefield tapped.

When Rupture Spire enters the battlefield, sacrifice it unless you pay {1}.

{T}: Add one mana of any color.

Sacrifice Sakura-Tribe Elder: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

If Scorched Ruins would enter the battlefield, sacrifice two untapped lands instead. If you do, put Scorched Ruins onto the battlefield. If you don't, put it into its owner's graveyard.

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

Sacrifice Seal of Primordium: Destroy target artifact or enchantment.

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.

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

When Shriekmaw enters the battlefield, destroy target nonartifact, nonblack creature.

Evoke {1}{B} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)

Deathtouch

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

When Sidisi, Undead Vizier exploits a creature, you may search your library for a card, put it into your hand, then shuffle.

Equipped creature gets +1/-1.

Whenever equipped creature dies, draw two cards.

Equip {1}

Each player loses 1 life, discards a card, sacrifices a creature, then sacrifices a land.

At the beginning of your upkeep, you may put a soot counter on Smokestack.

At the beginning of each player's upkeep, that player sacrifices a permanent for each soot counter on Smokestack.

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

({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}.)

({T}: Add {B}.)

{T}: Add {C}.

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

Temple of Malady enters the battlefield tapped.

When Temple of Malady enters the battlefield, scry 1.

{T}: Add {B} or {G}.

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)

At the beginning of each upkeep, create a 1/1 green Saproling creature token.

Saprolings you control get +2/+2 as long as you have the city's blessing.

{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Repeat the following process X times. Each opponent loses 3 life unless that player sacrifices a nonland permanent or discards a card.

As an additional cost to cast this spell, pay X life.

All creatures get -X/-X until end of turn.

Each opponent sacrifices an artifact or enchantment.

Sacrifice a creature: Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)

Each opponent sacrifices a creature. If you have the city's blessing, instead each opponent sacrifices half the creatures they control, rounded up.

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

If one or more counters would be put on an artifact or creature you control, that many plus one of each of those kinds of counters are put on that permanent instead.

If you would get one or more counters, you get that many plus one of each of those kinds of counters instead.

Woodland Cemetery enters the battlefield tapped unless you control a Swamp or a Forest.

{T}: Add {B} or {G}.

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.