Sign in Blood

Target player draws two cards and loses 2 life.

Icequake

Destroy target land. If that land was a snow land, Icequake deals 1 damage to that land's controller.

Swamp

Befoul

Destroy target land or nonblack creature. It can't be regenerated.

Dark Ritual

Rancid Earth

Destroy target land.
Threshold — If seven or more cards are in your graveyard, instead destroy that land and Rancid Earth deals 1 damage to each creature and each player.

Peat Bog

This land enters tapped with two depletion counters on it.
{T}, Remove a depletion counter from this land: Add {B}{B}. If there are no depletion counters on this land, sacrifice it.

Choking Sands

Destroy target non-Swamp land. If that land was nonbasic, Choking Sands deals 2 damage to the land's controller.

Barren Moor

This land enters tapped.
{T}: Add {B}.
Cycling {B} ({B}, Discard this card: Draw a card.)

Dusk Legion Zealot

When this creature enters, you draw a card and you lose 1 life.

Thorn of the Black Rose

Deathtouch
When this creature enters, you become the monarch.

Chittering Rats

When this creature enters, target opponent puts a card from their hand on top of their library.

Chainer's Edict

Target player sacrifices a creature of their choice.
Flashback {5}{B}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Gurmag Angler

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