Commander creatures you own have "Whenever an artifact or creature you control is put into a graveyard from the battlefield, each opponent loses 1 life."

{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.

When Bastion of Remembrance enters the battlefield, create a 1/1 white Human Soldier creature token.

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

Whenever a creature dies, put a charge counter on Black Market.

At the beginning of your precombat main phase, add {B} for each charge counter on Black Market.

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

Changeling (This card is every creature type.)

As Bloodline Pretender enters the battlefield, choose a creature type.

Whenever another creature of the chosen type enters the battlefield under your control, put a +1/+1 counter on Bloodline Pretender.

Bojuka Bog enters the battlefield tapped.

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

{T}: Add {B}.

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.

Charcoal Diamond enters the battlefield tapped.

{T}: Add {B}.

Add {B}{B}{B}.

When Deadbridge Shaman dies, target opponent discards a card.

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.")

When Deathknell Berserker dies, if its power was 3 or greater, create a 2/2 black Zombie Berserker creature token.

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

When Disciple of Bolas enters the battlefield, sacrifice another creature. You gain X life and draw X cards, where X is that creature's power.

Boast -- {1}: Target opponent loses 1 life and you gain 1 life. (Activate only if this creature attacked this turn and only once each turn.)

When Elderfang Ritualist dies, return another target Elf card from your graveyard to your hand.

When Elvish Doomsayer dies, each opponent discards a card.

Deathtouch

When Elvish Dreadlord dies, non-Elf creatures get -3/-3 until end of turn.

Encore {5}{B}{B} ({5}{B}{B}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

When Exquisite Huntmaster dies, create a 1/1 green Elf Warrior creature token.

Encore {4}{B} ({4}{B}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

When Eyeblight Cullers dies, create three 1/1 green Elf Warrior creature tokens, then mill three cards. (Put the top three cards of your library into your graveyard.)

Non-Elf creatures get -2/-2 until end of turn.

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

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

When Gilt-Leaf Winnower enters the battlefield, you may destroy target non-Elf creature whose power and toughness aren't equal.

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.)

Morph {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.)

Whenever another nontoken creature you control dies, draw a card.

When Haunt of the Dead Marshes enters the battlefield, scry 1.

{2}{B}: Return Haunt of the Dead Marshes from your graveyard to the battlefield tapped. Activate only if you control a legendary creature.

Commander creatures you own have "Whenever this creature becomes tapped, it and other creatures you control that share a creature type with it each get +2/+0 and gain undying until end of turn." (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 Heraldic Banner enters the battlefield, choose a color.

Creatures you control of the chosen color get +1/+0.

{T}: Add one mana of the chosen color.

When Hunter of Eyeblights enters the battlefield, put a +1/+1 counter on target creature you don't control.

{2}{B}, {T}: Destroy target creature with a counter on it.

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.)

{T}, Discard an Elf card: Target creature gets -X/-X until end of turn, where X is the number of Elves you control.

Whenever Miara, Thorn of the Glade or another Elf you control dies, you may pay {1} and 1 life. If you do, draw a card.

Partner (You can have two commanders if both have partner.)

{T}: Add {C}.

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

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.

Whenever a token you control leaves the battlefield, each opponent loses 1 life and you gain 1 life.

Whenever a token you control leaves the battlefield, put a +1/+1 counter on Nadier, Agent of the Duskenel.

When Nadier leaves the battlefield, create a number of 1/1 green Elf Warrior creature tokens equal to its power.

Partner (You can have two commanders if both have partner.)

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

Path of Ancestry enters the battlefield tapped.

{T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

{T}: Add one mana of any color.

{1}, {T}: Untap target legendary creature you control.

Whenever another creature you control dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

{B}, {T}, Discard a card: Target creature gets -1/-1 until end of turn.

Elves you control get +2/+0.

Whenever another nontoken Elf is put into your graveyard from the battlefield, you may create a 1/1 green Elf Warrior creature token.

You have no maximum hand size.

{T}: Add {C}.

{B}, Remove X +1/+1 counters from among creatures you control: Target creature gets -X/-X until end of turn.

Return target creature card from your graveyard to the battlefield. If it's an Elf, create two 1/1 green Elf Warrior creature tokens.

Foretell {3}{B} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

At the beginning of each player's upkeep, that player sacrifices a non-Elf creature.

{1}{B}, {T}, Sacrifice another creature: Draw X cards, where X is that creature's power.

Choose a Background (You can have a Background as a second commander.)

Target player draws two cards and loses 2 life.

Whenever another nontoken Elf or Berserker you control dies, you draw a card and you lose 1 life.

When Skemfar Shadowsage enters the battlefield, choose one --

• Each opponent loses X life, where X is the greatest number of creatures you control that have a creature type in common.

• You gain X life, where X is the greatest number of creatures you control that have a creature type in common.

Equipped creature gets +1/-1.

Whenever equipped creature dies, draw two cards.

Equip {1}

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

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.

Equipped creature gets +1/+1 and has haste.

At the beginning of each combat, untap equipped creature.

Equipped creature has first strike as long as it's blocking or blocked by a Goblin or Orc.

Equip {2}

({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}.)

({T}: Add {B}.)

({T}: Add {B}.)

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

Equip {1}

Whenever another creature dies, or a creature card is put into a graveyard from anywhere other than the battlefield, or a creature card leaves your graveyard, Syr Konrad, the Grim deals 1 damage to each opponent.

{1}{B}: Each player mills a card. (They each put the top card of their library into their graveyard.)

Whenever Thornbow Archer attacks, each opponent who doesn't control an Elf loses 1 life.

When Thornmantle Striker enters the battlefield, choose one --

• Remove X counters from target permanent, where X is the number of Elves you control.

• Target creature an opponent controls gets -X/-X until end of turn, where X is the number of Elves you control.

You have no maximum hand size.

{T}: Add {C}.

Target creature gets -1/-1 until end of turn.

Morbid -- That creature gets -13/-13 until end of turn instead if a creature died this turn.

Equipped creature gets +2/+0.

Whenever equipped creature dies, draw a card.

Equip {2} or {B}

At the beginning of your upkeep, if there are four or more creature cards in your graveyard, return a creature card at random from your graveyard to your hand.

Choose a Background (You can have a Background as a second commander.)

Choose two target creature cards in your graveyard. Sacrifice a creature. If you do, return the chosen cards to the battlefield tapped.

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

Draw two cards.

{2}, {T}, Sacrifice Wayfarer's Bauble: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Whenever Zulaport Cutthroat or another creature you control dies, each opponent loses 1 life and you gain 1 life.