Kobolds of Kher Keep

Gate to Phyrexia

Sacrifice a creature: Destroy target artifact. Activate only during your upkeep and only once each turn.

Black Vise

As this artifact enters, choose an opponent.
At the beginning of the chosen player's upkeep, this artifact deals X damage to that player, where X is the number of cards in their hand minus 4.

Howling Mine

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

Blood Moon

Library of Alexandria

{T}: Add {C}.
{T}: Draw a card. Activate only if you have exactly seven cards in hand.

Crookshank Kobolds

The Rack

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

Kobold Taskmaster

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

Feldon's Cane

{T}, Exile this artifact: Shuffle your graveyard into your library.

Ankh of Mishra

Whenever a land enters, this artifact deals 2 damage to that land's controller.

Shatterstorm

Destroy all artifacts. They can't be regenerated.

Chaos Orb

{1}, {T}: If this artifact is on the battlefield, flip it onto the battlefield from a height of at least one foot. If this artifact turns over completely at least once during the flip, destroy all nontoken permanents it touches. Then destroy this artifact.

Kobold Drill Sergeant

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

Sol Ring

Fire Drake

Flying
{R}: This creature gets +1/+0 until end of turn. Activate only once each turn.

Wheel of Fortune

Each player discards their hand, then draws seven cards.

Demonic Tutor

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

Strip Mine

{T}: Add {C}.
{T}, Sacrifice this land: Destroy target land.

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Shatter

Underworld Dreams

Whenever an opponent draws a card, this enchantment deals 1 damage to that player.

Chain Lightning

Chain Lightning deals 3 damage to any target. Then that player or that permanent's controller may pay {R}{R}. If the player does, they may copy this spell and may choose a new target for that copy.

Gauntlet of Might

Red creatures get +1/+1.
Whenever a Mountain is tapped for mana, its controller adds an additional {R}.

City of Brass

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

Mountain

Icy Manipulator

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

Fireball

This spell costs {1} more to cast for each target beyond the first.
Fireball deals X damage divided evenly, rounded down, among any number of targets.

Swamp

Relic Barrier

Kobold Overlord

First strike
Other Kobold creatures you control have first strike.

Crimson Kobolds

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.