Wall of Shadows

Defender (This creature can't attack.)
Prevent all damage that would be dealt to Wall of Shadows by creatures it's blocking.
Wall of Shadows can't be the target of spells that can target only Walls or of abilities that can target only Walls.

Murder

Breathe Your Last

Destroy target creature or planeswalker. You gain 1 life for each of its colors.

Tourach's Canticle

Target opponent reveals their hand. You choose a card from it. That player discards that card, then discards a card at random.

Accursed Spirit

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Stupor

Target opponent discards a card at random, then discards a card.

Island

Duress

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

Urborg Panther

{B}, Sacrifice Urborg Panther: Destroy target creature blocking Urborg Panther.
Sacrifice a creature named Feral Shadow, a creature named Breathstealer, and Urborg Panther: Search your library for a card named Spirit of the Night, put that card onto the battlefield, then shuffle.

Brainbite

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

Urborg Phantom

Urborg Phantom can't block.
{U}: Prevent all combat damage that would be dealt to and dealt by Urborg Phantom this turn.

Swamp

Abyssal Nightstalker

Whenever Abyssal Nightstalker attacks and isn't blocked, defending player discards a card.

Wall of Souls

Defender (This creature can't attack.)
Whenever Wall of Souls is dealt combat damage, it deals that much damage to target opponent or planeswalker.

Dismal Backwater

This land enters tapped.
When this land enters, you gain 1 life.
{T}: Add {U} or {B}.