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.

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

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.

As Caged Sun enters the battlefield, choose a color. Creatures you control of the chosen color get +1/+1. Whenever a land's ability causes you to add one or more mana of the chosen color, add one additional mana of that color.

Charcoal Diamond enters the battlefield tapped. {T}: Add {B}.

{2}, {T}, Sacrifice Expedition Map: Search your library for a land card, reveal it, put it into your hand, then shuffle.

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.) Equip {0}

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

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

Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control.) Equip {1}

You have no maximum hand size. {T}: Add {C}.

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

You have no maximum hand size. At the beginning of your upkeep, you gain 1 life for each card in your hand.

{T}, Sacrifice Basal Thrull: Add {B}{B}.

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

Sacrifice Blood Pet: Add {B}.

Flying If an opponent would lose life during your turn, they lose twice that much life instead. (Damage causes loss of life.)

{3}, Sacrifice Burnished Hart: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

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

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

Menace As an additional cost to cast black permanent spells, you may pay 2 life. Those spells cost {B} less to cast if you paid life this way. This effect reduces only the amount of black mana you pay. Whenever you cast a black permanent spell, target creature you control gets +1/+1 and gains menace until end of turn.

Flying, trample Pay 2 life: Surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

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.

Each nonland card in your hand without foretell has foretell. Its foretell cost is equal to its mana cost reduced by {2}. (During your turn, you may pay {2} and exile it from your hand face down. Cast it on a later turn for its foretell cost.) Whenever you foretell a card, Dream Devourer gets +2/+0 until end of turn.

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.)

Secrets of the Soul — {T}, Sacrifice another creature: Add an amount of {B} equal to the sacrificed creature's mana value.

Flying, trample Skip your draw step. Whenever you play a land or cast a spell, you draw a card and you lose 1 life.

({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.

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

Whenever you tap a Swamp for mana, add an additional {B}. {B}: Nirkana Revenant gets +1/+1 until end of turn.

Discard a card, Sacrifice Overeager Apprentice: Add {B}{B}{B}.

When Phyrexian Delver enters the battlefield, return target creature card from your graveyard to the battlefield. You lose life equal to that card's mana value.

Psychosis Crawler's power and toughness are each equal to the number of cards in your hand. Whenever you draw a card, each opponent loses 1 life.

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

Flying Discard a card: Add {B}.

{T}, Sacrifice a black or artifact creature: Add an amount of {B} equal to the sacrificed creature's mana value.

When Solemn Simulacrum enters the battlefield, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. When Solemn Simulacrum dies, you may draw a card.

Add {B} for each creature card in your graveyard.

When Starving Revenant enters the battlefield, surveil 2. Then for each card you put on top of your library, you draw a card and you lose 3 life. Descend 8 — Whenever you draw a card, if there are eight or more permanent cards in your graveyard, target opponent loses 1 life and you gain 1 life.

Whenever you gain life, target opponent loses that much life. {3}{B}{B}: Creatures you control gain lifelink until end of turn.

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.

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

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.

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

As an additional cost to cast this spell, discard a card or pay 3 life. Destroy target creature or planeswalker.

Add {B}{B}{B}.

Target creature gets -1/-1 until end of turn for each Swamp you control.

({B/P} can be paid with either {B} or 2 life.) Target creature gets -5/-5 until end of turn.

Destroy target creature. You lose 2 life.

If you control a Swamp, you may pay 4 life rather than pay this spell's mana cost. Destroy target nonblack creature. It can't be regenerated.

Bojuka Bog enters the battlefield tapped. When Bojuka Bog enters the battlefield, exile target player's graveyard. {T}: Add {B}.

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

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

Castle Locthwain enters the battlefield tapped unless you control a Swamp. {T}: Add {B}. {1}{B}{B}, {T}: Draw a card, then you lose life equal to the number of cards in your hand.

Ebon Stronghold enters the battlefield tapped. {T}: Add {B}. {T}, Sacrifice Ebon Stronghold: Add {B}{B}.

Myriad Landscape enters the battlefield tapped. {T}: Add {C}. {2}, {T}, Sacrifice Myriad Landscape: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.

Peat Bog enters the battlefield tapped with two depletion counters on it. {T}, Remove a depletion counter from Peat Bog: Add {B}{B}. If there are no depletion counters on Peat Bog, sacrifice it.

You have no maximum hand size. {T}: Add {C}.

Until end of turn, whenever a player taps a Swamp for mana, that player adds an additional {B}.

Each opponent loses X life. You gain life equal to the life lost this way.

Destroy target creature or enchantment an opponent controls. You lose life equal to that permanent's mana value.

All creatures get -1/-1 until end of turn for each Swamp you control.

You draw two cards and you lose 2 life.

Scry 2, then draw two cards. You lose 2 life.

Target player draws two cards and loses 2 life.