Resounding Scream

Target player discards a card at random.
Cycling (, Discard this card: Draw a card.)
When you cycle Resounding Scream, target player discards two cards at random.

Blightning

Blightning deals 3 damage to target player or planeswalker. That player or that planeswalker’s controller discards two cards.

Swirling Spriggan

: Target creature you control becomes the color or colors of your choice until end of turn.

Noggle Bridgebreaker

When Noggle Bridgebreaker enters the battlefield, return a land you control to its owner’s hand.

Hateflayer

Wither (This deals damage to creatures in the form of -1/-1 counters.)
, : Hateflayer deals damage equal to its power to any target. ( is the untap symbol.)

Gloomwidow’s Feast

Destroy target creature with flying. If that creature was blue or black, create a 1/2 green Spider creature token with reach. (It can block creatures with flying.)

Kinscaer Harpoonist

Flying
Whenever Kinscaer Harpoonist attacks, you may have target creature lose flying until end of turn.

Juvenile Gloomwidow

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

Witherscale Wurm

Whenever Witherscale Wurm blocks or becomes blocked by a creature, that creature gains wither until end of turn. (It deals damage to creatures in the form of -1/-1 counters.)
Whenever Witherscale Wurm deals damage to an opponent, remove all -1/-1 counters from it.

Duergar Hedge-Mage

When Duergar Hedge-Mage enters the battlefield, if you control two or more Mountains, you may destroy target artifact.
When Duergar Hedge-Mage enters the battlefield, if you control two or more Plains, you may destroy target enchantment.

Wirewood Symbiote

Return an Elf you control to its owner’s hand: Untap target creature. Activate this ability only once each turn.

Festering Goblin

When Festering Goblin dies, target creature gets -1/-1 until end of turn.

Contaminated Bond

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

Relentless Rats

Relentless Rats gets +1/+1 for each other creature on the battlefield named Relentless Rats.
A deck can have any number of cards named Relentless Rats.

Hunted Wumpus

When Hunted Wumpus enters the battlefield, each other player may put a creature card from their hand onto the battlefield.

Contaminated Bond

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

Quagnoth

Split second (As long as this spell is on the stack, players can’t cast spells or activate abilities that aren’t mana abilities.)
Shroud (This creature can’t be the target of spells or abilities.)
When a spell or ability an opponent controls causes you to discard Quagnoth, return it to your hand.

Bog Serpent

Bog Serpent can’t attack unless defending player controls a Swamp.
When you control no Swamps, sacrifice Bog Serpent.

Magus of the Arena

, : Tap target creature you control and target creature of an opponent’s choice they control. Those creatures fight each other. (Each deals damage equal to its power to the other.)

Imp’s Mischief

Change the target of target spell with a single target. You lose life equal to that spell’s converted mana cost.

Mantle of Leadership

Flash (You may cast this spell any time you could cast an instant.)
Enchant creature
Whenever a creature enters the battlefield, enchanted creature gets +2/+2 until end of turn.