Whenever you cast a spell, you gain 1 life for each spell you've cast this turn.

Pay 50 life: Aetherflux Reservoir deals 50 damage to any target.

If you would gain life, you gain twice that much life instead.

If you would draw a card except the first one you draw in each of your draw steps, draw two cards instead.

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

Whenever Ayara, First of Locthwain or another black creature enters the battlefield under your control, each opponent loses 1 life and you gain 1 life.

{T}, Sacrifice another black creature: Draw a card.

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

Flying

At the beginning of your upkeep, target player draws a card and loses 1 life.

You may look at the top card of your library any time.

You may play lands and cast spells from the top of your library. If you cast a spell this way, pay life equal to its mana value rather than pay its mana cost.

{T}, Sacrifice ten nonland permanents: Each opponent loses 10 life.

Black creature spells you cast cost {1} less to cast.

Whenever you cast a creature spell, each opponent loses 1 life and you gain 1 life.

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

{T}: Add {C}.

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

At the beginning of your upkeep, Creeping Bloodsucker deals 1 damage to each opponent. You gain life equal to the damage dealt this way.

Destroy all creatures. They can't be regenerated.

Add {B}{B}{B}.

Whenever a player casts a black spell, you may gain 1 life.

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.

Whenever a Swamp enters the battlefield under your control, choose one --

• You draw a card and you lose 1 life.

• Dread Presence deals 2 damage to any target and you gain 2 life.

Equipped creature gets +1/+0.

When equipped creature deals combat damage to a player, unattach Elbrus, the Binding Blade, then transform it.

Equip {1}

Flying, intimidate, trample (A creature with intimidate can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Whenever a player loses the game, put thirteen +1/+1 counters on Withengar Unbound.

{2}, {T}: Draw a card. Activate only if you control three or more lands with the same name.

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

Whenever you pay life, put that many blood counters on Font of Agonies.

{1}{B}, Remove four blood counters from Font of Agonies: Destroy target creature.

When Gray Merchant of Asphodel enters the battlefield, each opponent loses X life, where X is your devotion to black. You gain life equal to the life lost this way. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.)

{B}, Pay 2 life: Draw a card.

Black spells you cast cost {1} less to cast.

{T}, Sacrifice Jeweled Lotus: Add three mana of any one color. Spend this mana only to cast your commander.

({B/P} can be paid with either {B} or 2 life.)

Lifelink

For each {B} in a cost, you may pay 2 life rather than pay that mana.

Whenever you cast a black spell, put a +1/+1 counter on K'rrik, Son of Yawgmoth.

Flying

When Kokusho, the Evening Star dies, each opponent loses 5 life. You gain life equal to the life lost this way.

+1: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle.

-3: Target creature gets +X/+X or -X/-X until end of turn, where X is the number of Swamps you control.

-6: You get an emblem with "Swamps you control have '{T}: Add {B}{B}{B}{B}.'"

+1: Return up to one target creature card from your graveyard to your hand.

-3: Destroy target creature. Its controller loses 2 life.

-7: Target opponent loses 2 life for each creature card in their graveyard.

At the beginning of your upkeep, flip a coin. If you lose the flip, Mana Crypt deals 3 damage to you.

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

When Massacre Wurm enters the battlefield, creatures your opponents control get -2/-2 until end of turn.

Whenever a creature an opponent controls dies, that player loses 2 life.

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.)

As long as Necrotic Ooze is on the battlefield, it has all activated abilities of all creature cards in all graveyards.

Whenever a land enters the battlefield under an opponent's control, that player loses 1 life. Put a +1/+1 counter on Nightshade Harvester.

Whenever you tap a Swamp for mana, add an additional {B}.

{B}: Nirkana Revenant gets +1/+1 until end of turn.

{T}: Add {C}.

{2}, {T}: Choose a color. Add an amount of mana of that color equal to your devotion to that color. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents you control.)

Nyx Lotus enters the battlefield tapped.

{T}: Choose a color. Add an amount of mana of that color equal to your devotion to that color. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents you control.)

As Palace Siege enters the battlefield, choose Khans or Dragons.

• Khans -- At the beginning of your upkeep, return target creature card from your graveyard to your hand.

• Dragons -- At the beginning of your upkeep, each opponent loses 2 life and you gain 2 life.

Target player draws cards equal to half the number of cards in their library and loses half their life. Round up each time.

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.

Trample

Whenever a source deals damage to Phyrexian Obliterator, that source's controller sacrifices that many permanents.

{1}{B}, Pay 2 life: Return target creature card from your graveyard to your hand.

Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.)

Other creatures you control have extort. (If a creature has multiple instances of extort, each triggers separately.)

As Prism Ring enters the battlefield, choose a color.

Whenever you cast a spell of the chosen color, you gain 1 life.

Suspend 2--{1}{B} (Rather than cast this card from your hand, pay {1}{B} and exile it with two time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost.)

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.

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

Flying, trample

Pay 2 life, Sacrifice another creature: Search your library for a card, put that card into your hand, then shuffle.

Flying

When Reiver Demon enters the battlefield, if you cast it from your hand, destroy all nonartifact, nonblack creatures. They can't be regenerated.

{T}: Add {C}.

{4}, {T}: Target creature can't be blocked this turn.

Flying

Whenever a creature an opponent controls dies, you may gain 3 life.

Whenever an opponent discards a card, you may gain 3 life.

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

{T}: Add one mana of any color.

{T}: Add three mana of any one color. Activate only if you control three or more lands with the same name.

{1}: Look at the top three cards of your library, then put them back in any order.

{T}: Draw a card, then put Sensei's Divining Top on top of its owner's library.

Flying

Drain Life -- When Shard of the Nightbringer enters the battlefield, if you cast it, target opponent loses half their life, rounded up. You gain life equal to the life lost this way.

Deathtouch

Whenever you draw a card, you gain 2 life.

Whenever an opponent draws a card, they lose 2 life.

{T}: Add {B}.

{B}, {T}: Target legendary creature gains fear until end of turn. (It can't be blocked except by artifact creatures and/or black creatures.)

Flying

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

{B}: Skithiryx, the Blight Dragon gains haste until end of turn.

{B}{B}: Regenerate Skithiryx.

{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.

Whenever you cast a black spell or a Swamp enters the battlefield under your control, you gain 1 life.

({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 {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 {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

Deathtouch

{B}, Reveal Tetzimoc, Primal Death from your hand: Put a prey counter on target creature. Activate only during your turn.

When Tetzimoc enters the battlefield, destroy each creature your opponents control with a prey counter on it.

When The Meathook Massacre enters the battlefield, each creature gets -X/-X until end of turn.

Whenever a creature you control dies, each opponent loses 1 life.

Whenever a creature an opponent controls dies, you gain 1 life.

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

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

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.

Deathtouch

Boast -- {1}{B}: Target player searches their library for a card, then shuffles and puts that card on top. (Activate only if this creature attacked this turn and only once each turn.)

Flying

{B}, Pay 2 life: Target creature gets -1/-1 until end of turn.

Whenever you lose life, draw that many cards. (Damage causes loss of life.)

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

{3}{B}{B}: Creatures you control gain lifelink until end of turn.

Creatures you control have lifelink.

{2}{B}{B}, {T}: Return target creature card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step. If it would leave the battlefield, exile it instead of putting it anywhere else. Activate only as a sorcery.