Cabal Therapy

Choose a nonland card name. Target player reveals their hand and discards all cards with that name.
Flashback—Sacrifice a creature. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Hydroblast

Choose one —
• Counter target spell if it's red.
• Destroy target permanent if it's red.

Underground River

{T}: Add {C}.
{T}: Add {U} or {B}. Underground River deals 1 damage to you.

Infest

All creatures get -2/-2 until end of turn.

Nether Spirit

At the beginning of your upkeep, if Nether Spirit is the only creature card in your graveyard, you may return Nether Spirit to the battlefield.

Island

Engineered Plague

As Engineered Plague enters, choose a creature type.
All creatures of the chosen type get -1/-1.

Polluted Delta

{T}, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.

Diabolic Edict

Target player sacrifices a creature of their choice.

Innocent Blood

Each player sacrifices a creature of their choice.

Cursed Scroll

{3}, {T}: Choose a card name, then reveal a card at random from your hand. If that card has the chosen name, Cursed Scroll deals 2 damage to any target.

Funeral Charm

Choose one —
• Target player discards a card.
• Target creature gets +2/-1 until end of turn.
• Target creature gains swampwalk until end of turn. (It can't be blocked as long as defending player controls a Swamp.)

Ensnaring Bridge

Creatures with power greater than the number of cards in your hand can't attack.

Duress

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

Hurkyl's Recall

Return all artifacts target player owns to their hand.

Swamp

Tormod's Crypt

{T}, Sacrifice Tormod's Crypt: Exile target player's graveyard.

Smother

Destroy target creature with mana value 3 or less. It can't be regenerated.

Bottomless Pit

At the beginning of each player's upkeep, that player discards a card at random.

Tsabo's Web

When Tsabo's Web enters, draw a card.
Each land with an activated ability that isn't a mana ability doesn't untap during its controller's untap step.

Salt Marsh

Salt Marsh enters tapped.
{T}: Add {U} or {B}.

Null Brooch

{2}, {T}, Discard your hand: Counter target noncreature spell.

Recoil

Return target permanent to its owner's hand. Then that player discards a card.

Spawning Pool

Spawning Pool enters tapped.
{T}: Add {B}.
{1}{B}: Spawning Pool becomes a 1/1 black Skeleton creature with "{B}: Regenerate this creature" until end of turn. It's still a land. (If it regenerates, the next time it would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Perish

Destroy all green creatures. They can't be regenerated.

The Rack

As The Rack enters, choose an opponent.
At the beginning of the chosen player's upkeep, The Rack deals X damage to that player, where X is 3 minus the number of cards in their hand.