Squirming Mass

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

Mesmeric Fiend

When Mesmeric Fiend enters, target opponent reveals their hand and you choose a nonland card from it. Exile that card.
When Mesmeric Fiend leaves the battlefield, return the exiled card to its owner's hand.

Basal Thrull

Bestial Fury

Enchant creature
When Bestial Fury enters, draw a card at the beginning of the next turn's upkeep.
Whenever enchanted creature becomes blocked, it gets +4/+0 and gains trample until end of turn.

Claim of Erebos

Enchant creature
Enchanted creature has "{1}{B}, {T}: Target player loses 2 life."

Snow-Covered Swamp

Drudge Skeletons

{B}: Regenerate Drudge Skeletons. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Cave Sense

Enchant creature
Enchanted creature gets +1/+1 and has mountainwalk. (It can't be blocked as long as defending player controls a Mountain.)

Faceless Butcher

When Faceless Butcher enters, exile another target creature.
When Faceless Butcher leaves the battlefield, return the exiled card to the battlefield under its owner's control.

Earthbind

Enchant creature
When Earthbind enters, if enchanted creature has flying, Earthbind deals 2 damage to that creature and Earthbind gains "Enchanted creature loses flying."

Quag Vampires

Multikicker {1}{B} (You may pay an additional {1}{B} any number of times as you cast this spell.)
Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)
Quag Vampires enters with a +1/+1 counter on it for each time it was kicked.

Dark Ritual

Corrupted Zendikon

Enchant land
Enchanted land is a 3/3 black Ooze creature. It's still a land.
When enchanted land dies, return that card to its owner's hand.

Sabretooth Tiger

Stab Wound

Enchant creature
Enchanted creature gets -2/-2.
At the beginning of the upkeep of enchanted creature's controller, that player loses 2 life.

Armor Thrull

{T}, Sacrifice Armor Thrull: Put a +1/+2 counter on target creature.

Yawgmoth's Edict

Whenever an opponent casts a white spell, that player loses 1 life and you gain 1 life.

Feast of the Unicorn

Enchant creature
Enchanted creature gets +4/+0.

Phyrexian Monitor

Mire Kavu

Mire Kavu gets +1/+1 as long as you control a Swamp.

Evil Presence

Mons's Goblin Raiders

Death Charmer

Whenever Death Charmer deals combat damage to a creature, that creature's controller loses 2 life unless they pay {2}.

Relentless Assault

Untap all creatures that attacked this turn. After this main phase, there is an additional combat phase followed by an additional main phase.

Granite Grip

Enchant creature
Enchanted creature gets +1/+0 for each Mountain you control.

Manaforge Cinder

{1}: Add {B} or {R}. Activate no more than three times each turn.

Corrupted Roots

Enchant Forest or Plains
Whenever enchanted land becomes tapped, its controller loses 2 life.

Maniacal Rage

Enchant creature
Enchanted creature gets +2/+2 and can't block.

Balduvian Barbarians

Bravado

Enchant creature
Enchanted creature gets +1/+1 for each other creature you control.

Plague Beetle

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Mountain

Orcish Oriflamme

Attacking creatures you control get +1/+0.

Duskwalker

Kicker {3}{B} (You may pay an additional {3}{B} as you cast this spell.)
If Duskwalker was kicked, it enters with two +1/+1 counters on it and with fear. (It can't be blocked except by artifact creatures and/or black creatures.)

Sinister Possession

Enchant creature
Whenever enchanted creature attacks or blocks, its controller loses 2 life.

Terror

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

Flowstone Crusher

{R}: Flowstone Crusher gets +1/-1 until end of turn.

Demonic Rising

At the beginning of your end step, if you control exactly one creature, create a 5/5 black Demon creature token with flying.