Flying, trample

You can't win the game and your opponents can't lose the game.

Flying

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

Flying

Archfiend of the Dross enters the battlefield with four oil counters on it.

At the beginning of your upkeep, remove an oil counter from Archfiend of the Dross. Then if it has no oil counters on it, you lose the game.

Whenever a creature an opponent controls dies, its controller loses 2 life.

Flying, trample

Whenever an opponent casts a spell, that player creates a Blood token. (It's an artifact with "{1}, {T}, Discard a card, Sacrifice this artifact: Draw a card.")

Whenever Bloodvial Purveyor attacks, it gets +1/+0 until end of turn for each Blood token defending player controls.

Bojuka Bog enters the battlefield tapped.

When Bojuka Bog enters the battlefield, exile target player's graveyard.

{T}: Add {B}.

Castle Vantress enters the battlefield tapped unless you control an Island.

{T}: Add {U}.

{2}{U}{U}, {T}: Scry 2.

{T}: Add {C}.

{T}, Sacrifice Command Beacon: Put your commander into your hand from the command zone.

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

({T}: Add {U} or {B}.)

Contaminated Aquifer enters the battlefield tapped.

Flying

Whenever Coveted Falcon attacks, gain control of target permanent you own but don't control.

Disguise {1}{U}

When Coveted Falcon is turned face up, target opponent gains control of any number of target permanents you control. Draw a card for each one they gained control of this way.

No more than two creatures can attack you each combat.

Creeping Tar Pit enters the battlefield tapped.

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

{1}{U}{B}: Creeping Tar Pit becomes a 3/2 blue and black Elemental creature until end of turn and can't be blocked this turn. It's still a land.

Flying

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

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

Whenever a player casts a spell, sacrifice a creature.

Flying

{T}: Exchange control of two target nonlegendary creatures. You can't activate this ability during combat.

Drinker of Sorrow can't block.

Whenever Drinker of Sorrow deals combat damage, sacrifice a permanent.

Flying

Whenever a player casts a spell, you lose 1 life.

Whenever Ebonblade Reaper attacks, you lose half your life, rounded up.

Whenever Ebonblade Reaper deals combat damage to a player, that player loses half their life, rounded up.

Morph {3}{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.)

Non-Eye creatures you control can't attack.

Evil Eye of Orms-by-Gore can't be blocked except by Walls.

Non-Eye creatures you control can't attack.

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

({T}: Add {U} or {B}.)

Fetid Pools enters the battlefield tapped.

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

At the beginning of your upkeep, sacrifice a permanent.

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

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

Creatures you control get -1/-1.

Flying

Whenever Hellcarver Demon deals combat damage to a player, sacrifice all other permanents you control and discard your hand. Exile the top six cards of your library. You may cast any number of spells from among cards exiled this way without paying their mana costs.

{T}: Add {C}.

{T}: Each player gains control of all creatures they own.

({T}: Add {U} or {B}.)

Ice Tunnel enters the battlefield tapped.

({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.

{T}: Add {C}.

{4}, {T}: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

{T}: Add {C}.

{4}, {T}: Remove target attacking or blocking creature from combat.

Flying

At the beginning of your upkeep, each opponent draws a card.

{T}: Untap target attacking creature. Prevent all combat damage that would be dealt to and dealt by that creature this turn.

Mistvault Bridge enters the battlefield tapped.

Indestructible

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

Menace (This creature can't be blocked except by two or more creatures.)

Whenever Morkrut Necropod attacks or blocks, sacrifice another creature or land.

Morphic Pool enters the battlefield tapped unless you have two or more opponents.

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

Whenever a creature deals damage to you, destroy it.

Trample

Whenever Phyrexian Negator is dealt damage, sacrifice that many permanents.

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.)

{T}, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.

At the beginning of your upkeep, discard a card.

Flying

At the beginning of your upkeep, sacrifice an artifact other than Rust Elemental. If you can't, tap Rust Elemental and you lose 4 life.

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.

Shipwreck Marsh enters the battlefield tapped unless you control two or more other lands.

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

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

If Soldevi Excavations would enter the battlefield, sacrifice an untapped Island instead. If you do, put Soldevi Excavations onto the battlefield. If you don't, put it into its owner's graveyard.

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

{1}, {T}: Scry 1.

{T}: Choose two target blocking creatures an opponent controls. If each of those creatures could block all creatures that the other is blocking, remove both of them from combat. Each one then blocks all creatures the other was blocking.

Whenever Sorrow's Path becomes tapped, it deals 2 damage to you and each creature you control.

You can't cast creature spells.

Flying

At the beginning of the end step, if you control no Goblins, sacrifice Stenchskipper.

({T}: Add {U} or {B}.)

Sunken Hollow enters the battlefield tapped unless you control two or more basic lands.

{T}: Add {C}.

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

Trample

Phasing (This phases in or out before you untap during each of your untap steps. While it's phased out, it's treated as though it doesn't exist.)

At the beginning of your upkeep, all lands you control phase out. (They phase in before you untap during your next untap step.)

Temple of Deceit enters the battlefield tapped.

When Temple of Deceit enters the battlefield, scry 1.

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

{3}, {T}: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.

At the beginning of your end step, if you control seven or more lands, transform Thaumatic Compass.

(Transforms from Thaumatic Compass.)

{T}: Add {C}.

{T}: Untap target attacking creature an opponent controls and remove it from combat.

{T}: Add {C}.

{2}, {T}: Target legendary creature becomes a God in addition to its other types. Put a +1/+1 counter on it.

{4}, {T}, Sacrifice Tyrite Sanctum: Put an indestructible counter on target God.

Each land is a Swamp in addition to its other land types.

You may have Vesuva enter the battlefield tapped as a copy of any land on the battlefield.

({T}: Add {U} or {B}.)

As Watery Grave enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.