Rocky Tar Pit

Rocky Tar Pit enters tapped.
{T}, Sacrifice Rocky Tar Pit: Search your library for a Swamp or Mountain card, put it onto the battlefield, then shuffle.

Vicious Hunger

Vicious Hunger deals 2 damage to target creature and you gain 2 life.

Volrath the Fallen

{1}{B}, Discard a creature card: Volrath the Fallen gets +X/+X until end of turn, where X is the discarded card's mana value.

Flowstone Wall

Defender (This creature can't attack.)
{R}: Flowstone Wall gets +1/-1 until end of turn.

Seal of Doom

Sacrifice Seal of Doom: Destroy target nonblack creature. It can't be regenerated.

Fire Diamond

Fire Diamond enters tapped.
{T}: Add {R}.

Highway Robber

When Highway Robber enters, target opponent loses 2 life and you gain 2 life.

Jagged Lightning

Jagged Lightning deals 3 damage to each of two target creatures.

Stronghold Discipline

Each player loses 1 life for each creature they control.

Chain Lightning

Chain Lightning deals 3 damage to any target. Then that player or that permanent's controller may pay {R}{R}. If the player does, they may copy this spell and may choose a new target for that copy.

Shower of Sparks

Shower of Sparks deals 1 damage to target creature and 1 damage to target player or planeswalker.

Cinder Wall

Defender
When Cinder Wall blocks, destroy it at end of combat.

Carrion Wall

Defender (This creature can't attack.)
{1}{B}: Regenerate Carrion Wall.

Swamp

Plague Witch

{B}, {T}, Discard a card: Target creature gets -1/-1 until end of turn.

Badlands

Mountain

Stun

Target creature can't block this turn.
Draw a card.

Lightning Blast

Lightning Blast deals 4 damage to any target.

Wall of Corpses

Defender (This creature can't attack.)
{B}, Sacrifice Wall of Corpses: Destroy target creature Wall of Corpses is blocking.

Nekrataal

First strike
When Nekrataal enters, destroy target nonartifact, nonblack creature. That creature can't be regenerated.