{2}, {T}: Put a charge counter on Black Mana Battery. {T}, Remove any number of charge counters from Black Mana Battery: Add {B}, then add an additional {B} for each charge counter removed this way.

{1}, {T}: You gain 2 life. {2}, {T}, Exile Campfire: Put all commanders you own from the command zone and from your graveyard into your hand. Then shuffle your graveyard into your library.

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

{T}, Exile Feldon's Cane: Shuffle your graveyard into your library.

Flying When Abhorrent Overlord enters the battlefield, create a number of 1/1 black Harpy creature tokens with flying equal to your devotion to black. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.) At the beginning of your upkeep, sacrifice a creature.

When Abyssal Gatekeeper dies, each player sacrifices a creature.

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.

When Baleful Beholder enters the battlefield, choose one — • Antimagic Cone — Each opponent sacrifices an enchantment. • Fear Ray — Creatures you control gain menace until end of turn. (A creature with menace can't be blocked except by two or more creatures.)

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

When Blight-Breath Catoblepas enters the battlefield, target creature an opponent controls gets -X/-X until end of turn, where X is your devotion to black. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.)

Flying When Cadaver Imp enters the battlefield, you may return target creature card from your graveyard to your hand.

Carrion Grub gets +X/+0, where X is the greatest power among creature cards in your graveyard. When Carrion Grub enters the battlefield, mill four cards. (Put the top four cards of your library into your graveyard.)

When Caustic Hound dies, each player loses 4 life.

Animate Chains — When Chain Devil enters the battlefield, each player sacrifices a nontoken creature.

Flying When Crow of Dark Tidings enters the battlefield or dies, mill two cards. (Put the top two cards of your library into your graveyard.)

Deathtouch When Deathcap Marionette enters the battlefield, you may mill two cards. (You may put the top two cards of your library into your graveyard.)

When Dire Fleet Hoarder dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

When Dreadhound enters the battlefield, mill three cards. (Put the top three cards of your library into your graveyard.) Whenever a creature dies or a creature card is put into a graveyard from a library, each opponent loses 1 life.

{T}, Sacrifice an artifact or creature: Each opponent loses 1 life and you gain 1 life.

When Driver of the Dead dies, return target creature card with mana value 2 or less from your graveyard to the battlefield.

When Eerie Soultender enters the battlefield, mill three cards. (To mill a card, put the top card of your library into your graveyard.) {4}{B}, Exile Eerie Soultender from your graveyard: Return another target creature card from your graveyard to your hand.

When Elvish Doomsayer dies, each opponent discards a card.

Flying Sacrifice a creature: Fallen Angel gets +2/+1 until end of turn.

Trample Whenever Geode Golem deals combat damage to a player, you may cast your commander from the command zone without paying its mana cost. (You still pay any additional costs.)

When Ghastly Death Tyrant enters the battlefield, choose one — • Disintegration Ray — Destroy target enchantment an opponent controls. You lose life equal to its mana value. • Death Ray — Creatures you control gain deathtouch until end of turn.

When Gnawing Vermin enters the battlefield, target player mills two cards. When Gnawing Vermin dies, target creature you don't control gets -1/-1 until end of turn.

Flying When Gorging Vulture enters the battlefield, mill four cards. You gain 1 life for each creature card milled this way. (To mill a card, put the top card of your library into your graveyard.)

When Gruesome Scourger enters the battlefield, it deals damage to target opponent or planeswalker equal to the number of creatures you control.

Lifelink When Koma's Faithful dies, each player mills three cards. (To mill a card, a player puts the top card of their library into their graveyard.)

When Liliana's Shade enters the battlefield, you may search your library for a Swamp card, reveal it, put it into your hand, then shuffle. {B}: Liliana's Shade gets +1/+1 until end of turn.

{T}, Mill a card: Add {C}. (To mill a card, put the top card of your library into your graveyard.)

Deathtouch When Mire Triton enters the battlefield, mill two cards and you gain 2 life.

Whenever Mortis Dogs attacks, it gets +2/+0 until end of turn. When Mortis Dogs dies, target player loses life equal to its power.

When Priest of Gix enters the battlefield, add {B}{B}{B}.

When Ravenous Gigamole enters the battlefield, mill three cards. You may put a creature card from among the cards milled this way into your hand. If you don't, put a +1/+1 counter on Ravenous Gigamole. (To mill a card, put the top card of your library into your graveyard.)

When Returned Centaur enters the battlefield, target player mills four cards.

Flying When Rune-Scarred Demon enters the battlefield, search your library for a card, put it into your hand, then shuffle.

When Shambling Ghast dies, choose one — • Brave the Stench — Target creature an opponent controls gets -1/-1 until end of turn. • Search the Body — Create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

{T}: Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

When Slum Reaper enters the battlefield, each player sacrifices a creature.

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

When Testament Bearer dies, look at the top three cards of your library. Put one of them into your hand and the rest into your graveyard.

{T}: Create a Treasure token. Activate only if a creature died this turn. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

When Underworld Hermit enters the battlefield, create a number of 1/1 green Squirrel creature tokens equal to your devotion to black. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.)

When Vampire Spawn enters the battlefield, each opponent loses 2 life and you gain 2 life.

Deathtouch When Venomous Hierophant enters the battlefield, mill three cards.

Flying Toxic Spores — At the beginning of your end step, if a permanent you controlled left the battlefield this turn, each opponent loses 3 life.

Mill three cards, then you may return a creature card from your graveyard to your hand. (To mill a card, put the top card of your library into your graveyard.)

As an additional cost to cast this spell, sacrifice a creature. Draw two cards.

Look at the top three cards of your library. Put two of them into your hand and the other into your graveyard. Dark Bargain deals 2 damage to you.

Add {B}{B}{B}.

As an additional cost to cast this spell, sacrifice an artifact or creature. Draw two cards and create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

Target creature gets -3/-3 until end of turn. Target player mills three cards. (They put the top three cards of their library into their graveyard.)

Casualty 1 (As you cast this spell, you may sacrifice a creature with power 1 or greater. When you do, copy this spell.) Mill two cards, then you may return a creature card from your graveyard to your hand. (To mill a card, put the top card of your library into your graveyard.)

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

{T}: Add {C}. {2}, {T}, Sacrifice Buried Ruin: Return target artifact card from your graveyard to your hand.

{T}: Add {C}. {2}, {T}, Sacrifice Demolition Field: Destroy target nonbasic land an opponent controls. That land's controller may search their library for a basic land card, put it onto the battlefield, then shuffle. You may search your library for a basic land card, put it onto the battlefield, then shuffle.

Everglades enters the battlefield tapped. When Everglades enters the battlefield, sacrifice it unless you return an untapped Swamp you control to its owner's hand. {T}: Add {C}{B}.

({T}: Add {B}.)

As an additional cost to cast this spell, pay {4} or sacrifice an artifact or creature. Destroy target creature or planeswalker.

Search your library for up to three creature cards, put them into your graveyard, then shuffle.

Look at the top four cards of your library. Put one of them into your hand and the rest into your graveyard. You gain life equal to the greatest power among creature cards put into your graveyard this way.

As an additional cost to cast this spell, sacrifice a creature or pay {3}{B}. Exile target creature or planeswalker.

Search your library for two cards. Put one into your hand and the other into your graveyard. Then shuffle.

Look at the top three cards of your library. Put one of them into your hand and the rest into your graveyard.