Terror

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

Kobold Overlord

First strike
Other Kobold creatures you control have first strike.

Smoke

Players can't untap more than one creature during their untap steps.

Twiddle

You may tap or untap target artifact, creature, or land.

Wall of Bone

Defender (This creature can't attack.)
{B}: Regenerate Wall of Bone. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Howling Mine

At the beginning of each player's draw step, if Howling Mine is untapped, that player draws an additional card.

Ivory Tower

At the beginning of your upkeep, you gain X life, where X is the number of cards in your hand minus 4.

Counterspell

Wall of Heat

Goblin Balloon Brigade

{R}: Goblin Balloon Brigade gains flying until end of turn.

Crookshank Kobolds

Invisibility

Enchant creature
Enchanted creature can't be blocked except by Walls.

Braingeyser

Wall of Air

Defender, flying (This creature can't attack, and it can block creatures with flying.)

Wheel of Fortune

Each player discards their hand, then draws seven cards.

Underground Sea

City of Brass

Whenever City of Brass becomes tapped, it deals 1 damage to you.
{T}: Add one mana of any color.

Kobold Drill Sergeant

Other Kobold creatures you control get +0/+1 and have trample.

Shatter

Mana Short

Tap all lands target player controls and that player loses all unspent mana.

Swamp

Island

Badlands

Demonic Tutor

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

Remove Soul

Wall of Fire

Defender (This creature can't attack.)
{R}: Wall of Fire gets +1/+0 until end of turn.

Hurr Jackal

{T}: Target creature can't be regenerated this turn.

Clone

You may have Clone enter as a copy of any creature on the battlefield.

Winds of Change

Each player shuffles the cards from their hand into their library, then draws that many cards.

Horror of Horrors

Sacrifice a Swamp: Regenerate target black creature. (The next time that creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Unsummon

Return target creature to its owner's hand.

Merfolk of the Pearl Trident

Wall of Earth

Storm World

At the beginning of each player's upkeep, Storm World deals X damage to that player, where X is 4 minus the number of cards in their hand.

Manabarbs

Whenever a player taps a land for mana, Manabarbs deals 1 damage to that player.

Zephyr Falcon

Mons's Goblin Raiders

Volcanic Island

The Wretched

At end of combat, gain control of all creatures blocking The Wretched for as long as you control The Wretched.

Chains of Mephistopheles

If a player would draw a card except the first one they draw in each of their draw steps, that player discards a card instead. If the player discards a card this way, they draw a card. If the player doesn't discard a card this way, they mill a card.

Flying Men

Underworld Dreams

Whenever an opponent draws a card, Underworld Dreams deals 1 damage to that player.

Wall of Vapor

Defender (This creature can't attack.)
Prevent all damage that would be dealt to Wall of Vapor by creatures it's blocking.

Giant Tortoise

Giant Tortoise gets +0/+3 as long as it's untapped.

Armageddon Clock

At the beginning of your upkeep, put a doom counter on Armageddon Clock.
At the beginning of your draw step, Armageddon Clock deals damage equal to the number of doom counters on it to each player.
{4}: Remove a doom counter from Armageddon Clock. Any player may activate this ability but only during any upkeep step.

Vampire Bats

Flying (This creature can't be blocked except by creatures with flying or reach.)
{B}: Vampire Bats gets +1/+0 until end of turn. Activate no more than twice each turn.

Yotian Soldier

Word of Command

Look at target opponent's hand and choose a card from it. You control that player until Word of Command finishes resolving. The player plays that card if able. While doing so, the player can activate mana abilities only if they're from lands that player controls and only if mana they produce is spent to activate other mana abilities of lands the player controls and/or to play that card. If the chosen card is cast as a spell, you control the player while that spell is resolving.

Wall of Putrid Flesh

Defender (This creature can't attack.)
Protection from white
Prevent all damage that would be dealt to Wall of Putrid Flesh by enchanted creatures.

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Nicol Bolas

Flying
At the beginning of your upkeep, sacrifice Nicol Bolas unless you pay {U}{B}{R}.
Whenever Nicol Bolas deals damage to an opponent, that player discards their hand.

Living Wall

Defender (This creature can't attack.)
{1}: Regenerate Living Wall.

Meekstone

Creatures with power 3 or greater don't untap during their controllers' untap steps.

Gwendlyn Di Corci

{T}: Target player discards a card at random. Activate only during your turn.

Kobold Taskmaster

Other Kobold creatures you control get +1/+0.

Drain Power

Target player activates a mana ability of each land they control. Then that player loses all unspent mana and you add the mana lost this way.

Power Leak

Enchant enchantment
At the beginning of the upkeep of enchanted enchantment's controller, that player may pay any amount of mana. Power Leak deals 2 damage to that player. Prevent X of that damage, where X is the amount of mana that player paid this way.

The Rack

As The Rack enters, choose an opponent.
At the beginning of the chosen player's upkeep, The Rack deals X damage to that player, where X is 3 minus the number of cards in their hand.

Giant Strength

Enchant creature
Enchanted creature gets +2/+2.

Unholy Strength

Enchant creature
Enchanted creature gets +2/+1.

Ankh of Mishra

Whenever a land enters, Ankh of Mishra deals 2 damage to that land's controller.

Erg Raiders

At the beginning of your end step, if Erg Raiders didn't attack this turn, Erg Raiders deals 2 damage to you unless it came under your control this turn.

Mountain

Crimson Kobolds

Merchant Ship

Merchant Ship can't attack unless defending player controls an Island.
Whenever Merchant Ship attacks and isn't blocked, you gain 2 life.
When you control no Islands, sacrifice Merchant Ship.

Dark Ritual

Takklemaggot

Enchant creature
At the beginning of the upkeep of enchanted creature's controller, put a -0/-1 counter on that creature.
When enchanted creature dies, that creature's controller chooses a creature that Takklemaggot could enchant. If the player does, return Takklemaggot to the battlefield under your control attached to that creature. If they don't, return Takklemaggot to the battlefield under your control as a non-Aura enchantment. It loses "enchant creature" and gains "At the beginning of that player's upkeep, Takklemaggot deals 1 damage to that player."

Sol Ring

Kobolds of Kher Keep

Artifact Blast

Unstable Mutation

Enchant creature
Enchanted creature gets +3/+3.
At the beginning of the upkeep of enchanted creature's controller, put a -1/-1 counter on that creature.

Wall of Shadows

Defender (This creature can't attack.)
Prevent all damage that would be dealt to Wall of Shadows by creatures it's blocking.
Wall of Shadows can't be the target of spells that can target only Walls or of abilities that can target only Walls.

Blood Lust

If target creature has toughness 5 or greater, it gets +4/-4 until end of turn. Otherwise, it gets +4/-X until end of turn, where X is its toughness minus 1.