Corrupt Court Official

When Corrupt Court Official enters, target opponent discards a card.

Swamp

Duress

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

Ravenous Rats

When Ravenous Rats enters, target opponent discards a card.

Tendrils of Despair

As an additional cost to cast this spell, sacrifice a creature.
Target opponent discards two cards.

Cabal Coffers

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

Plaguebearer

{X}{X}{B}: Destroy target nonblack creature with mana value X.

Skulltap

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

Festering Goblin

When Festering Goblin dies, target creature gets -1/-1 until end of turn.

Shadowblood Ridge

Goblin Bombardment

Sacrifice a creature: Goblin Bombardment deals 1 damage to any target.

Mind Slash

{B}, Sacrifice a creature: Target opponent reveals their hand. You choose a card from it. That player discards that card. Activate only as a sorcery.

Sol Ring

Leaden Myr

Tainted Peak

{T}: Add {C}.
{T}: Add {B} or {R}. Activate only if you control a Swamp.

Sadistic Hypnotist

Sacrifice a creature: Target player discards two cards. Activate only as a sorcery.

Genesis Chamber

Whenever a nontoken creature enters, if Genesis Chamber is untapped, that creature's controller creates a 1/1 colorless Myr artifact creature token.

Nantuko Shade

{B}: Nantuko Shade gets +1/+1 until end of turn.

Vampiric Tutor

Search your library for a card, then shuffle and put that card on top. You lose 2 life.

Phyrexian Plaguelord

{T}, Sacrifice Phyrexian Plaguelord: Target creature gets -4/-4 until end of turn.
Sacrifice a creature: Target creature gets -1/-1 until end of turn.