Juvenile Gloomwidow

Reach (This creature can block creatures with flying.)
Wither (This deals damage to creatures in the form of -1/-1 counters.)

Hornet Sting

Hornet Sting deals 1 damage to any target.

Prized Unicorn

All creatures able to block Prized Unicorn do so.

Megrim

Whenever an opponent discards a card, Megrim deals 2 damage to that player.

Jagged Lightning

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

Dusk Imp

Doom Blade

Carrion Thrash

When Carrion Thrash dies, you may pay {2}. If you do, return another target creature card from your graveyard to your hand.

Green Sun's Zenith

Search your library for a green creature card with mana value X or less, put it onto the battlefield, then shuffle. Shuffle Green Sun's Zenith into its owner's library.

Blood Tithe

Each opponent loses 3 life. You gain life equal to the life lost this way.

Flesh-Eater Imp

Flying
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
Sacrifice a creature: Flesh-Eater Imp gets +1/+1 until end of turn.

Primal Cocoon

Enchant creature
At the beginning of your upkeep, put a +1/+1 counter on enchanted creature.
When enchanted creature attacks or blocks, sacrifice Primal Cocoon.

Spined Wurm

Demon's Jester

Flying
Hellbent — Demon's Jester gets +2/+1 as long as you have no cards in hand.

Dryad's Favor

Enchant creature
Enchanted creature has forestwalk. (It can't be blocked as long as defending player controls a Forest.)

Naturalize

Natural Spring

Canyon Minotaur

Troll Ascetic

Hexproof (This creature can't be the target of spells or abilities your opponents control.)
{1}{G}: Regenerate Troll Ascetic.

Dragon Appeasement

Skip your draw step.
Whenever you sacrifice a creature, you may draw a card.

River Boa

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)
{G}: Regenerate River Boa.

Ravenous Rats

When Ravenous Rats enters, target opponent discards a card.

Viashino Slaughtermaster

Double strike
{B}{G}: Viashino Slaughtermaster gets +1/+1 until end of turn. Activate only once each turn.

Mind Rot

Runeclaw Bear

Trained Armodon

Caustic Hound

When Caustic Hound dies, each player loses 4 life.

Quilled Slagwurm

Lava Axe

Lava Axe deals 5 damage to target player or planeswalker.

Foul Imp

Flying
When Foul Imp enters, you lose 2 life.

Obelisk of Jund

Wall of Vines

Defender (This creature can't attack.)
Reach (This creature can block creatures with flying.)

Giant Growth

Target creature gets +3/+3 until end of turn.

Howl of the Night Pack

Create a 2/2 green Wolf creature token for each Forest you control.

Knight of Dusk

{B}{B}: Destroy target creature blocking Knight of Dusk.

Brindle Boar

Forest

Duskdale Wurm

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Demolish

Giant Spider

Reach (This creature can block creatures with flying.)

Terror

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

Drudge Skeletons

{B}: Regenerate Drudge Skeletons. (The next time this creature would be destroyed this turn, it isn't. Instead tap it, remove all damage from it, and remove it from combat.)

Loch Korrigan

{U/B}: Loch Korrigan gets +1/+1 until end of turn.

Mountain

Blightwidow

Reach (This creature can block creatures with flying.)
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

Howling Banshee

Flying
When Howling Banshee enters, each player loses 3 life.

Wall of Wood

Volcanic Strength

Enchant creature
Enchanted creature gets +2/+2 and has mountainwalk. (It can't be blocked as long as defending player controls a Mountain.)

Swamp

Sadistic Augermage

When Sadistic Augermage dies, each player puts a card from their hand on top of their library.

Abyssal Specter

Flying
Whenever Abyssal Specter deals damage to a player, that player discards a card.

Tangle Mantis

Incinerate

Incinerate deals 3 damage to any target. A creature dealt damage this way can't be regenerated this turn.

Molten Frame

Destroy target artifact creature.
Cycling {2} ({2}, Discard this card: Draw a card.)