Swamp

Black Lotus

{T}, Sacrifice this artifact: Add three mana of any one color.

Icequake

Destroy target land. If that land was a snow land, Icequake deals 1 damage to that land's controller.

Sinkhole

Mishra's Factory

{T}: Add {C}.
{1}: This land becomes a 2/2 Assembly-Worker artifact creature until end of turn. It's still a land.
{T}: Target Assembly-Worker creature gets +1/+1 until end of turn.

Choking Sands

Destroy target non-Swamp land. If that land was nonbasic, Choking Sands deals 2 damage to the land's controller.

Terror

Destroy target nonartifact, nonblack creature. It can't be regenerated.

Hymn to Tourach

Target player discards two cards at random.

Mind Twist

Target player discards X cards at random.

Dark Ritual

Demonic Tutor

Search your library for a card, put that card into your hand, then shuffle.

Mox Jet

Strip Mine

{T}: Add {C}.
{T}, Sacrifice this land: Destroy target land.

Order of the Ebon Hand

Protection from white
{B}: This creature gains first strike until end of turn.
{B}{B}: This creature gets +1/+0 until end of turn.

Juzám Djinn

At the beginning of your upkeep, this creature deals 1 damage to you.

Each player loses a third of their life, then discards a third of the cards in their hand, then sacrifices a third of the creatures they control of their choice, then sacrifices a third of the lands they control of their choice. Round up each time.

Sol Ring

Necropotence

Skip your draw step.
Whenever you discard a card, exile that card from your graveyard.
Pay 1 life: Exile the top card of your library face down. Put that card into your hand at the beginning of your next end step.

Hypnotic Specter

Flying
Whenever this creature deals damage to an opponent, that player discards a card at random.