Whenever an opponent casts a creature spell, Aether Sting deals 1 damage to that player.

Akoum Refuge enters the battlefield tapped.

When Akoum Refuge enters the battlefield, you gain 1 life.

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

{T}: Add {C}{C}. Ancient Tomb deals 2 damage to you.

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

Flying

Whenever Balefire Dragon deals combat damage to a player, it deals that much damage to each creature that player controls.

At the beginning of your end step, you may reveal the top card of your library. If you do, each opponent loses life equal to that card's mana value.

Barren Moor enters the battlefield tapped.

{T}: Add {B}.

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

Blackcleave Cliffs enters the battlefield tapped unless you control two or fewer other lands.

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

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

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

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

At the beginning of each end step, if an opponent lost 2 or more life this turn, you may put a quest counter on Bloodchief Ascension. (Damage causes loss of life.)

Whenever a card is put into an opponent's graveyard from anywhere, if Bloodchief Ascension has three or more quest counters on it, you may have that player lose 2 life. If you do, you gain 2 life.

Bloodfell Caves enters the battlefield tapped.

When Bloodfell Caves enters the battlefield, you gain 1 life.

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

{T}, Pay 1 life, Sacrifice Bloodstained Mire: Search your library for a Swamp or Mountain card, put it onto the battlefield, then shuffle.

Bojuka Bog enters the battlefield tapped.

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

{T}: Add {B}.

{T}: Put a fuse counter on target creature.

At the beginning of your upkeep, put a fuse counter on each creature with a fuse counter on it.

Whenever a creature has four or more fuse counters on it, remove all fuse counters from it and destroy it. That creature deals 4 damage to its controller.

Whenever a player taps a nonbasic land for mana, Burning Earth deals 1 damage to that player.

{2}, {T}: Add {B} for each Swamp you control.

Lands you control have "{T}: Add one mana of any color."

{T}: Add one mana of any color.

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

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

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

Flash

If a source would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.

Dragonskull Summit enters the battlefield tapped unless you control a Swamp or a Mountain.

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

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

Whenever a creature deals damage to you, destroy it.

When Dread is put into a graveyard from anywhere, shuffle it into its owner's library.

Whenever a player casts a spell with mana value 3 or less, Eidolon of the Great Revel deals 2 damage to that player.

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

Whenever an opponent loses life, you gain that much life.

Whenever an opponent draws a card, Fate Unraveler deals 1 damage to that player.

If a source would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.

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

{T}: Add {C}.

{B/R}, {T}: Add {B}{B}, {B}{R}, or {R}{R}.

{T}: Add {C}.

{1}, {T}, Sacrifice Grixis Panorama: Search your library for a basic Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.

{T}: Hammerfist Giant deals 4 damage to each creature without flying and each player.

Players can't gain life.

At the beginning of each player's upkeep, that player loses half their life, rounded up.

Cumulative upkeep {2} (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 a player doesn't pay Heart of Bogardan's cumulative upkeep, Heart of Bogardan deals X damage to target player or planeswalker and each creature that player or that planeswalker's controller controls, where X is twice the number of age counters on Heart of Bogardan minus 2.

{T}: Heartless Hidetsugu deals damage to each player equal to half that player's life total, rounded down.

If target player has exactly 10 life, Hidetsugu's Second Rite deals 10 damage to that player.

At the beginning of each player's end step, if that player didn't cast a spell this turn, Impatience deals 2 damage to that player.

Flying

At the beginning of your upkeep, draw a card unless target opponent sacrifices a creature or pays 3 life.

Imprint -- When Invader Parasite enters the battlefield, exile target land.

Whenever a land with the same name as the exiled card enters the battlefield under an opponent's control, Invader Parasite deals 2 damage to that player.

{T}: Add {C}.

{1}, {T}, Sacrifice Jund Panorama: Search your library for a basic Swamp, Mountain, or Forest card, put it onto the battlefield tapped, then shuffle.

Whenever an opponent casts a spell, Kaervek the Merciless deals damage equal to that spell's mana value to any target.

Lavaclaw Reaches enters the battlefield tapped.

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

{1}{B}{R}: Until end of turn, Lavaclaw Reaches becomes a 2/2 black and red Elemental creature with "{X}: This creature gets +X/+0 until end of turn." It's still a land.

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

Whenever Lightning Reaver deals combat damage to a player, put a charge counter on it.

At the beginning of your end step, Lightning Reaver deals damage equal to the number of charge counters on it to each opponent.

At the beginning of each upkeep, Magmatic Force deals 3 damage to any target.

{T}, Pay 1 life: Add one mana of any color.

Whenever a player taps a land for mana, Manabarbs deals 1 damage to that player.

Indestructible

As long as your devotion to black and red is less than seven, Mogis isn't a creature.

At the beginning of each opponent's upkeep, Mogis deals 2 damage to that player unless they sacrifice a creature.

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

Skip your draw step.

Whenever you discard a card, exile that card from your graveyard.

Pay 1 life: Exile the top card of your library face down. Put that card into your hand at the beginning of your next end step.

Whenever a player casts a spell, counter it unless that player pays {3}.

Whenever a source you control deals damage to another player, put that many theft counters on Night Dealings.

{2}{B}{B}, Remove X theft counters from Night Dealings: Search your library for a nonland card with mana value X, reveal it, put it into your hand, then shuffle.

{1}{R}{R}: Put a blaze counter on target land without a blaze counter on it. For as long as that land has a blaze counter on it, it has "At the beginning of your upkeep, this land deals 1 damage to you." (The land continues to burn after Obsidian Fireheart has left the battlefield.)

Whenever a player casts a spell, that player discards a card.

Whenever an opponent is dealt 3 or more damage by a single source, that player discards a card.

Whenever an opponent casts a spell, that player loses 5 life unless they discard a card.

Flying

{B}: Pestilence Demon deals 1 damage to each creature and each player.

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

{3}{R}: Target opponent reveals a card at random from their hand. Planeswalker's Fury deals damage equal to that card's mana value to that player. Activate only as a sorcery.

Whenever a land enters the battlefield under an opponent's control, that player loses 2 life and you gain 2 life.

Whenever a player casts a spell from their hand, that player exiles it, then exiles cards from the top of their library until they exile a card that shares a card type with it. That player may cast that card without paying its mana cost. Then they put all cards exiled with Possibility Storm on the bottom of their library in a random order.

Whenever another creature dies, Rage Thrower deals 2 damage to target player or planeswalker.

If a spell or ability would cause its controller to gain life, that player loses that much life instead.

Rakdos Carnarium enters the battlefield tapped.

When Rakdos Carnarium enters the battlefield, return a land you control to its owner's hand.

{T}: Add {B}{R}.

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

{B}{R}, {T}, Sacrifice Rakdos Cluestone: Draw a card.

Rakdos Guildgate enters the battlefield tapped.

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

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

{B}{R}: Rakdos Keyrune becomes a 3/1 black and red Devil artifact creature with first strike until end of turn.

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

You have no maximum hand size.

{T}: Add {C}.

Whenever you gain life, target opponent loses that much life.

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

Skull Rend deals 2 damage to each opponent. Those players each discard two cards at random.

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

+2: Sorin Markov deals 2 damage to any target and you gain 2 life.

-3: Target opponent's life total becomes 10.

-7: You control target player during that player's next turn.

Sorin's Vengeance deals 10 damage to target player or planeswalker and you gain 10 life.

Whenever a player casts a spell, Spellshock deals 2 damage to that player.

At the beginning of each player's draw step, that player draws an additional card.

Whenever a player draws a card, Spiteful Visions deals 1 damage to that player.

{T}: Add {C}.

{T}: Add {B} or {R}. Sulfurous Springs deals 1 damage to you.

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

Temple of Malice enters the battlefield tapped.

When Temple of Malice enters the battlefield, scry 1.

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

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

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

Whenever equipped creature attacks, defending player reveals cards from the top of their library until they reveal a land card. The creature gets +1/+0 until end of turn for each card revealed this way. That player puts the revealed cards into their graveyard.

Equip {2}

Tresserhorn Sinks enters the battlefield tapped.

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

Whenever an opponent draws a card, Underworld Dreams deals 1 damage to that player.

Urborg Volcano enters the battlefield tapped.

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

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

Search your library for a card, then shuffle and put that card on top. You lose 2 life.

Worn Powerstone enters the battlefield tapped.

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

At the beginning of each end step, each opponent loses life equal to the life they lost this turn. (Damage causes loss of life.)