Contaminated Bond

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)
Whenever enchanted creature attacks or blocks, its controller loses 3 life.

Mind Rot

Swamp

Flayed Nim

Whenever this creature deals combat damage to a creature, that creature's controller loses that much life.
{2}{B}: Regenerate this creature.

Lightning Greaves

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.)
Equip {0}

Looming Shade

{B}: This creature gets +1/+1 until end of turn.

Mind Sludge

Target player discards a card for each Swamp you control.

Irradiate

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

Plague Wind

Destroy all creatures you don't control. They can't be regenerated.

Bonesplitter

Fireshrieker

Equipped creature has double strike. (It deals both first-strike and regular combat damage.)
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Frogmite

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)

Relic Bane

Enchant artifact
Enchanted artifact has "At the beginning of your upkeep, you lose 2 life."

Consume Spirit

Spend only black mana on X.
Consume Spirit deals X damage to any target and you gain X life.

Nightmare Lash

Equipped creature gets +1/+1 for each Swamp you control.
Equip—Pay 3 life. (Pay 3 life: Attach to target creature you control. Equip only as a sorcery. This card enters unattached and stays on the battlefield if the creature leaves.)

Coercion

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

Death Pit Offering

When this enchantment enters, sacrifice all creatures you control.
Creatures you control get +2/+2.

Myr Retriever

When this creature dies, return another target artifact card from your graveyard to your hand.

Nim Lasher

This creature gets +1/+0 for each artifact you control.

Dross Harvester

Protection from white
At the beginning of your end step, you lose 4 life.
Whenever a creature dies, you gain 2 life.

Nim Devourer

This creature gets +1/+0 for each artifact you control.
{B}{B}: Return this card from your graveyard to the battlefield, then sacrifice a creature. Activate only during your upkeep.

Severed Legion

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

Nim Shambler

This creature gets +1/+0 for each artifact you control.
Sacrifice a creature: Regenerate this creature.

Nim Replica

{2}{B}, Sacrifice this creature: Target creature gets -1/-1 until end of turn.

Icy Manipulator

{1}, {T}: Tap target artifact, creature, or land.

Scythe of the Wretched

Equipped creature gets +2/+2.
Whenever a creature dealt damage by equipped creature this turn dies, return that card to the battlefield under your control. Attach this Equipment to that creature.
Equip {4}

Necrogen Spellbomb

{B}, Sacrifice this artifact: Target player discards a card.
{1}, Sacrifice this artifact: Draw a card.

Ravenous Rats

When this creature enters, target opponent discards a card.

Raise Dead

Return target creature card from your graveyard to your hand.

Lord of the Undead

Other Zombie creatures get +1/+1.
{1}{B}, {T}: Return target Zombie card from your graveyard to your hand.

Phyrexian Plaguelord

{T}, Sacrifice this creature: Target creature gets -4/-4 until end of turn.
Sacrifice a creature: Target creature gets -1/-1 until end of turn.

Oblivion Stone

{4}, {T}: Put a fate counter on target permanent.
{5}, {T}, Sacrifice this artifact: Destroy each nonland permanent without a fate counter on it, then remove all fate counters from all permanents.

Sculpting Steel

You may have this artifact enter as a copy of any artifact on the battlefield.

Myr Enforcer

Gluttonous Zombie

Ambition's Cost

You draw three cards and you lose 3 life.

Nausea

All creatures get -1/-1 until end of turn.

Woebearer

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)
Whenever this creature deals combat damage to a player, you may return target creature card from your graveyard to your hand.

Fallen Angel

Flying
Sacrifice a creature: This creature gets +2/+1 until end of turn.

Dross Prowler

Duskworker

Whenever this creature becomes blocked, regenerate it.
{3}: This creature gets +1/+0 until end of turn.

Gravedigger

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

Mind's Eye

Whenever an opponent draws a card, you may pay {1}. If you do, draw a card.

Reiver Demon

Flying
When this creature enters, if you cast it from your hand, destroy all nonartifact, nonblack creatures. They can't be regenerated.

Tooth of Chiss-Goria

Flash
Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
{T}: Target creature gets +1/+0 until end of turn.

Vault of Whispers

Moriok Scavenger

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