When Blood Fountain enters the battlefield, create a Blood token. (It's an artifact with "{1}, {T}, Discard a card, Sacrifice this artifact: Draw a card.") {3}{B}, {T}, Sacrifice Blood Fountain: Return up to two target creature cards from your graveyard to your hand.

{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.

{X}: Crypt Rats deals X damage to each creature and each player. Spend only black mana on X.

When Dusk Legion Zealot enters the battlefield, you draw a card and you lose 1 life.

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.)

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.)

Deathtouch When Thorn of the Black Rose enters the battlefield, you become the monarch.

Destroy target nonlegendary creature.

As an additional cost to cast this spell, sacrifice an artifact or creature. Draw two cards and create a Map token. (It's an artifact with "{1}, {T}, Sacrifice this artifact: Target creature you control explores. Activate only as a sorcery.")

As an additional cost to cast this spell, sacrifice an artifact or creature. You gain life equal to the sacrificed permanent's mana value. Draw two cards.

Target creature gains deathtouch and lifelink until end of turn. Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")

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

Golgari Rot Farm enters the battlefield tapped. When Golgari Rot Farm enters the battlefield, return a land you control to its owner's hand. {T}: Add {B}{G}.

({T}: Add {B}.)

Return target creature card from your graveyard to your hand.

Add {B}{B}{B}.

Shadow (This creature can block or be blocked by only creatures with shadow.) Dauthi Slayer attacks each combat if able.

All creatures get -2/-2 until end of turn. Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Each player puts a creature card from their graveyard onto the battlefield.

Flying {B}: Regenerate Fog of Gnats.

As an additional cost to cast this spell, exile X creature cards from your graveyard. Haunting Misery deals X damage to target player or planeswalker.

Return target creature card from your graveyard to your hand.

Enchant creature Whenever a creature dies, put a +1/+1 counter on enchanted creature.

Destroy target nonartifact, nonblack creature. It can't be regenerated.

Corrupt deals damage to any target equal to the number of Swamps you control. You gain life equal to the damage dealt this way.

Choose one — • Target opponent exiles a creature they control. • Target opponent exiles an enchantment they control.

Spend only black mana on X. Drain Life deals X damage to any target. You gain life equal to the damage dealt, but not more life than the player's life total before the damage was dealt, the planeswalker's loyalty before the damage was dealt, or the creature's toughness.

Target opponent reveals their hand. You choose a noncreature, nonland card from it. That player discards that card.

Target player discards two cards.