Divest

Target player reveals their hand. You choose an artifact or creature card from it. That player discards that card.

Defile

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

Burglar Rat

When this creature enters, each opponent discards a card.

Barren Moor

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

Grisly Spectacle

Destroy target nonartifact creature. Its controller mills cards equal to that creature's power.

Duress

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

Balustrade Spy

Flying
When Balustrade Spy enters, target player reveals cards from the top of their library until they reveal a land card, then puts those cards into their graveyard.

Essence Harvest

Target player loses X life and you gain X life, where X is the greatest power among creatures you control.

Gravedigger

When Gravedigger enters, you may return target creature card from your graveyard to your hand.

Vicious Rumors

Vicious Rumors deals 1 damage to each opponent. Each opponent discards a card, then mills a card. You gain 1 life.

Tragic Slip

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.

Witch's Cottage

({T}: Add {B}.)
Witch's Cottage enters tapped unless you control three or more other Swamps.
When Witch's Cottage enters untapped, you may put target creature card from your graveyard on top of your library.

Swamp

Ravenous Rats

When Ravenous Rats enters, target opponent discards a card.

Wight of Precinct Six

Wight of Precinct Six gets +1/+1 for each creature card in your opponents' graveyards.